ECONOPLATE E4 SERIES IO&M 102010ACa - Stokvis Industrial … · 2019-05-10 · GENERAL DESCRIPTION: The Stokvis Econoplate E4 series of packaged plate heat exchangers are available

ECONOPLATE E4 SERIES HOT WATER SERVICE

PACKAGED PLATE HEAT EXCHANGERS E4A/E4B

INSTALLATION, OPERATION & MAINTENANCE

DOCUMENTATION

STOKVIS ENERGY SYSTEMS 96R WALTON ROAD EAST MOLESEY SURREY KT8 0DL TEL: 02087833050 / 08707707747 FAX: 02087833051 / 08707707767 E-MAIL: [email protected] WEBSITE: www.stokvisboilers.com

E4SERIESIO&M102010ACa

Contents Page 3 General Description Page 4 E4A Technical Specification Page 5 E4A Mechanical Drawings Page 6 E4A Performance Specification Page 7 E4B Technical Specification Page 8 E4B Mechanical Drawings Page 9 E4B Performance Specification Page 10 Primary Installation Page 11 Secondary Installation Page 12 Secondary Installation Schematics Page 13 Electrical Details & External Connections Page 14 Operation Page 15 Maintenance Page 16 Maintenance (cont.) Page 17 Fault Finding Page 18 Fault Finding (cont.) Page 19 Temporary Operation Page 20 Parts List: Current Models Page 21 Parts List: Current Models (cont.) Page 22 Parts List: Previous Models Page 24 onwards Econotrol 2100 Controller Instructions

2

GENERAL DESCRIPTION: The Stokvis Econoplate E4 series of packaged plate heat exchangers are available in 2 ranges covering a total of some 30 units with outputs ranging from 45kW to 888kW (when fed with primary water at 82°C). The E4 series units are designed, where necessary, to operate up to a maximum operating temperature of 110°C** (see Primary Installation), and to provide hot water instantaneously, without the need for storage, up to their maximum rated output. Econoplate units can be coupled to a buffer vessel for even greater outputs. All units are built around an epoxy coated chassis containing the heat exchanger. This heat exchanger is made up of a number of gasketed stainless steel plates which form the channels for primary and secondary water to flow through. Plates can be readily added, up to the chassis limit, enabling the output capacity of an existing unit to be increased if required. Plate heat exchangers have low water content and low thermal inertia making them ideal for use in systems with varying heat loads. The primary and secondary water both make a single pass across the heat exchanger, in opposing directions, enabling required heat exchange to take place. The E4 series units are supplied with fast acting 4-port motorized control valves fitted to the primary circuit. This valve is modulated by a purpose built PID controller which senses the secondary water temperature and opens or closes the valve in response. The primary water is constantly circulated around the unit by an integral primary pump which has been matched to the heat exchanger, with an allowance of 6 kPa to overcome external pipework losses. Systems which utilise an existing primary feed pump, when connected directly to a unit, will require an additional bypass. For instantaneous hot water service usage, a secondary hot water service return pump and non-return valve can be supplied, fitted and wired to the unit as an option. For semi-instantaneous hot water usage, a transfer pump can be provided to pump water from a storage vessel to the Econoplate. In addition to the PID controller, the control panel on the E4 series plate heat exchanger contains: valve opening/closing and P1/P2 primary pump running functional indicator lamps, a 500mA control fuse, a 10A output fuse, duplex pump duty share (if fitted), high/low temperature alarm indication, volt free common temperature alarm terminals, high temperature lockout, an extra low voltage external interlock circuit and a 4-20mA flow temperature indication circuit. Time control can be by: either the internal inbuilt 7 day time clock for either 2 temperatures of operation or a single temperature and night off per day, or externally using the extra low voltage “external time clock” circuit for either 2 temperatures of operation or a single temperature and night off. On the E4B models, primary pump overloads are included as standard with overload trip indication displayed on the panel. Also on E4B duplex (twin-head) primary pump units, auto-changeover on primary pump fault is included. Volt free primary pump run and overload trip can be added as an option. All Econoplate units are fully assembled and factory wired for ease of installation, leaving only the electrical supply and primary and secondary water circuits to be connected on site.

3

E4A TECHNICAL SPECIFICATION: -Chassis Plate : Epoxy coated steel 25mm thick -Front Plate : Epoxy coated steel 20mm thick -Heat Exchanger Plate : 316 grade stainless steel -Plate Gaskets : EPDM -Retaining Bolts : 16mm carbon steel -Maximum Primary Operating Temperature : 110°C -Maximum Operating Pressure : 6 bar -Primary Water Connections (standard) : DN40, PN6 -Secondary Inlet Cold Water Feed : Bronze 1½” BSPF -Secondary Outlet Hot Water Service Flow : Bronze 1½” BSPF -Secondary Hot Water Service Return : Bronze 1” BSPF (or ¾” BSPF when HWS secondary recirc. pump fitted) -Primary Pump : UPS40-80F (1-phase 220W) (Fitted with integral thermal protection relay) (UPSD40-80F on Duplex units) -Primary Control Valve : 4-port, Cast Iron, DN40, PN6 -Primary Control Valve Actuator : 230V, modulating, motor open/close -Control Panel (standard): • ABS enclosure • Electronic PID temperature controller • 7 day time clock control of 2 temperature settings and/or 1 temperature and night off, per day

• Safety extra low voltage circuit for external “clock” control of 2 temperatures or 1 temperature and off

• Safety extra low voltage circuit for external interlock • Adjustable high limit and low limit temperature alarms, temp. alarm lamp, common volt free temp. alarm and selectable high temp. lockout modes

• Functional indication of: primary pump (P1 or P2) enabled and valve opening/closing • LCD digital display of day and time, secondary flow temperature and any faults • 4-20mA output of secondary flow temperature • Pump mode selection including duplex pump duty share • Full menu driven interrogation of parameters and operating modes • 500mA control fuse, 10A output fuse

Options: • Primary pump(s) volt free run & trip terminals • Duplex (twin-head) primary pump • Duplex (twin-head) primary pump with auto-changeover • HWS Secondary Recirc. Pump : UP20-45N (1-phase) (c/w Bronze NRV) • HWS Secondary Transfer pump : UP20-45N (1-phase), UPS25-55N (1-phase), (Dependent on model) UPS32-55N (1-phase), UPS32-80N (1-phase) • Additional Primary Shut Off Valve : 2-port, DZR Cast Brass Body, Rp 1½“, PN40 and Actuator : 230V, motor open/spring close • Additional High Limit Thermostat : 230V, manual reset, IP54 WEIGHT: 150kg (max.) (excluding options) LENGTH: 542mm (excluding options) HEIGHT: 1110mm WIDTH: 383mm (excluding options) PERFORMANCE – From 12.9 to 91.9 litres per minute of hot water at 60°C (based on a primary temperature of 82°C and a cold feed temperature of 10°C).

4

E4A+1R INSTANTANEOUS MECHANICAL DETAILS INCLUDING SECONDARY HWS RECIRCULATION PUMP:

E4A+1T SEMI-INSTANTANEOUS MECHANICAL DETAILS INCLUDING SECONDARY TRANSFER PUMP ON ANGLED SECONDARY INLET:

5

PRIMARY INLETDN40 PN6

PRIMARY OUTLETDN40 PN6

SECONDARY OUTLET11/2"BSP(F)

SECONDARY INLET

555

101

1110

500

300

542

255

100 75

250

305 383

75

140

SEE TEXT

SECONDARY INLET DEPENDANT ON PUMP

UP20-45N = 3/4" BSP(F)

UPS25-55N = 1" BSP(F)

UPS32-55N =11/4" BSP(F)

UPS32-80N =11/4" BSP(F)



SECONDARY OUTLET11/2"BSP(F)

SECONDARY RECIRC

SECONDARY INLET11/2"BSP(F)

87

15155

5 18

4

101

1110

500

300

542

255

10

100 75

250

305 383

140

75

3/4"BSP(F)

6

E4A5 E4A7 E4A9 E4A11 E4A13 E4A15 E4A17 E4A19 E4A21 E4A23 E4A25 E4A27

RECIRCULATION RATE OF 1m3/hr

22 25 30 32 33 34 35 35 35 36 36 36

RECIRCULATION RATE OF 3m3/hr

- - - - - - - - 2 3 4 5

NOTES: The extra primary pump head available to overcome pipework resistance is 6 kPa (variable on request).Models with lower secondary resistance can be produced on request.Output figures vary with primary temp. e.g. capacity is increased by approx. 33% with a primary of 105°C.The selection guide uses diversity factors. For simultaneous operation of outlets, calculate separately.For applications not listed or temperatures other than those above, contact Stokvis for a selection.Tourist hotels assume a shower and wash hand basin are available in each room.Luxury hotels assume a bath or shower and wash hand basin are available in each room.Standard flats are classed as having 1 sink, 1 wash hand basin and 1 shower.Luxury flats are classified as having 1 sink, 2 wash hand basins and 1 bath.Standard fittings are assumed in all cases.

ECONOPLATE MODEL

SELECTION GUIDE FOR E4A RANGE

Available pump head (kPa) from optional secondary recirculation pump, at various flow-rates

14 16 18 20

74 80

- - - - 5 7 9 11

40 49 59 669 15 22 31

2217 26 45403531

61 67

21

5

13

8 12

24 31 388 18 46 53

28

37 41

30

44

26- 4 6 9 12 15 18 24

320

3 6 9 13 17 21 26 30 34

244 267 284 304

1.67 1.75 1.80

45 80 111 142 170 197 223

20

0.46 0.67 0.83 1.00 1.14 1.28 1.42 1.50 1.60

91.9

20 23 25 25 25 25 25 24 23 22 21

40.8 48.9 56.6 64 70.1 76.7 81.6 87.3

HOSPITALS & NURSING HOMES BY NUMBER OF ROOMSSPORTS CENTRES OR STADIUMS BY NUMBER OF SHOWERS

12.9 23

- 5

2 5

3-

PERFORMANCE GUIDE FOR E4A RANGE (PRIMARY TEMP. 82°C, COLD FEED 10°C)

LUXURY HOTELS BY NUMBER OF ROOMSNUMBER OF STANDARD FLATSNUMBER OF LUXURY FLATS

SECONDARY FLOW-RATE AT 60°C (l/min)SECONDARY PRESSURE DROP AT PEAK OUTPUT (kPa)PRIMARY FLOW-RATE (l/sec)HEAT LOAD REQUIRED (kW)

TOURIST HOTELS BY NUMBER OF ROOMS

31.9

E4B TECHNICAL SPECIFICATION: -Chassis Plate : Epoxy coated steel 25mm thick -Front Plate : Epoxy coated steel 25mm thick -Heat Exchanger Plate : 316 grade stainless steel -Plate Gaskets : EPDM -Retaining Bolts : 16mm carbon steel -Maximum Primary Operating Temperature : 110°C -Maximum Operating Pressure : 6 bar -Primary Water Connections (standard) : DN50, PN6 -Secondary Inlet Cold Water Feed : Bronze 2” BSPF -Secondary Outlet Hot Water Service Flow : Bronze 2” BSPF -Secondary Hot Water Service Return : Bronze 1¼” BSPM (or 1¼” BSPF when HWS secondary recirc. pump fitted) -Primary Pump : UPS50-120F (1-phase 760W, 3-phase 720W) (Fitted with integral thermal protection relay) (UPSD50-120F on Duplex units) -Primary Control Valve : 4-port, Cast Iron, DN50, PN6 -Primary Control Valve Actuator : 230V, modulating, motor open/close -Control Panel (standard): • ABS enclosure • Electronic PID temperature controller • 7 day time clock control of 2 temperature settings and/or 1 temperature and night off, per day

• Safety extra low voltage circuit for external “clock” control of 2 temperatures or 1 temperature and off

• Safety extra low voltage circuit for external interlock • Adjustable high limit and low limit temperature alarms, temp. alarm lamp, common volt free temp. alarm and selectable high temp. lockout modes

• Functional indication of: primary pump (P1 or P2) enabled and valve opening/closing • LCD digital display of day and time, secondary flow temperature and any faults • 4-20mA output of secondary flow temperature • Pump mode selection including duplex pump duty share and auto-changeover on pump fault

• Primary pump overloads with optional volt free pump run and fault indication • Full menu driven interrogation of parameters and operating modes • 500mA control fuse, 10A output fuse

Options: • Primary pump(s) volt free run & trip terminals • Duplex (twin-head) primary pump with auto-changeover • HWS Secondary Recirc. Pump : UPS32-55N (1-phase) (c/w Bronze NRV) • HWS Secondary Transfer Pump : UPS32-80N (1-phase only) (Dependent on model) UPS40-60/2FB, UPS40-120FB, UPS50-120FB (all 1-phase or 3-phase) • Additional Primary Shut Off Valve : 2-port, DZR Cast Brass Body, Rp 2“, PN40 and Actuator : 230V, motor open/spring close • Additional High Limit Thermostat : 230V, manual reset, IP54 WEIGHT: 190kg (max.) (excluding options) LENGTH: 674mm (excluding options) HEIGHT: 1130mm WIDTH: 394mm (excluding options) PERFORMANCE – From 115.2 to 255.0 litres per minute of hot water at 60°C (based on a primary temperature of 82°C and a cold feed temperature of 10°C).

7

E4B+1R INSTANTANEOUS MECHANICAL DETAILS INCLUDING SECONDARY HWS RECIRCULATION PUMP:

E4B+1T SEMI-INSTANTANEOUS MECHANICAL DETAILS INCLUDING UPS40-60/120 FB SECONDARY TRANSFER PUMP ON ANGLED SECONDARY INLET:

8

SECONDARY INLET50mm BSP(F)



SECONDARY OUTLET2" BSP(F)

1130

397300

300

500394

555

250

100 75

75

101

SECONDARY RECIRC11/4" BSP(F)

151

674

245

10


GRUNDFOS

GRUNDFOS

GRUN

DFOS


SECONDARY INLETDN40 PN6/10 (STANDARD PUMPS)

OPTIONAL DN50 PN6/10 PUMP FOR REMOTE FITTING BY CUSTOMER

SECONDARY OUTLET2" BSPF

397

300500

1130

555

101

394250

100 75 290

75

9

E4B23 E4B27 E4B31 E4B35 E4B39 E4B43 E4B47 E4B51 E4B55 E4B59

RECIRCULATION RATE OF 1m3/hr 48 48 48 48 48 48 48 49 49 49



NOTES:The extra primary pump head available to overcome pipework resistance is 6 kPa (variable on request).Models with lower secondary resistance can be produced on request.Output figures vary with primary temp. e.g. capacity is increased by approx. 33% with a primary of 105°C.The selection guide uses diversity factors. For simultaneous operation of outlets, calculate separately.For applications not listed or temperatures other than those above, contact Stokvis for a selection.Tourist hotels assume a shower and wash hand basin are available in each room.Luxury hotels assume a bath or shower and wash hand basin are available in each room.Standard flats are classed as having 1 sink, 1 wash hand basin and 1 shower.Luxury flats are classified as having 1 sink, 2 wash hand basins and 1 bath.Standard fittings are assumed in all cases.There is a slight reduction in output when using a 1-phase primary pump.

366 395

128 138 148

101 133 166 200 234 270 300

196

336

212 228

43 56 67 80 92 104 114

806 848 888

64 81 100 120 138 159 176

5.00 5.17 5.33

401 470 535 598 654 710 756

3.97 4.26 4.55 4.78

404141

2.86 3.27 3.62

37393940

SELECTION GUIDE FOR E4B RANGE

Available pump head (kPa) from optional secondary recirculation pump, at various flow-rates

115.2 135 153.6 171.6 187.8 204 217.2 231.6

PERFORMANCE GUIDE FOR E4B RANGE (PRIMARY TEMP. 82°C, COLD FEED 10°C)

SECONDARY FLOW-RATE AT 60°C (l/min)SECONDARY PRESSURE DROP AT PEAK OUTPUT (kPa)PRIMARY FLOW-RATE (l/sec)

ECONOPLATE MODEL

243.6 255

353637

NUMBER OF LUXURY FLATSHOSPITALS & NURSING HOMES BY NUMBER OF ROOMSSPORTS CENTRES OR STADIUMS BY NUMBER OF SHOWERS

HEAT LOAD REQUIRED (kW)

TOURIST HOTELS BY NUMBER OF ROOMSLUXURY HOTELS BY NUMBER OF ROOMSNUMBER OF STANDARD FLATS

68 93 120 146 172 199 221 248 271 293

120 165 205 250 290 333 371 412

82 96 108 12233 44 57 70 133 144

446 479

PRIMARY INSTALLATION DETAILS: The flow from the primary heat source is connected to the vertical connection of the 4-port valve and the return to the horizontal connection. Connections must be made using appropriate counter flanges, and suitable isolating valves should be installed to enable servicing of the unit after installation. To ensure correct operation, water at the design flow temperature should be available to the plate heat exchanger at all times. This is necessary because the plate heat exchanger itself, under no load conditions, does not flow water through the boiler. Consequently when a demand for hot water occurs, the boiler would be unable to respond fast enough to prevent temperatures dropping. Avoid having additional primary pumps pumping to the Econoplate, unless either a full bore bypass or a low loss header is included across the flow and return. **On unvented systems, where the heat source is capable of raising the temperature over 100°C, a manual reset high limit thermostat set to 90°C can be provided to interrupt the supply of energy to the primary water. Where a flow can persist, even when the high limit thermostat has switched off the primary pump, an additional spring return primary shut off valve, operated by the same manual reset high limit thermostat set to 90°C, can be provided. This valve will also interrupt the supply of energy if the electrical power supply is interrupted.

Typical Installation of an Econoplate E4 Series Plate Heat Exchanger on a combined heating and hot water system with HWS priority

(Including additional spring return primary shut off valve and manual reset high limit thermostat):

10

BOILER

LOW

VE

LOC

ITY

MA

NIFO

LD

ECONOPLATE PACKAGE

HEATING CIRCUIT

HWS CIRCUIT

COLD WATERFEED

SHUNT PUMP

ISOLATION , SAFETY & REGULATION VALVES NOT SHOWN FOR CLARITY

SECONDARY INSTALLATION DETAILS:

INSTANTANEOUS HOT WATER APPLICATIONS: When water is being drawn directly from the Econoplate into the distribution system to the taps, this is termed instantaneous hot water generation. The cold water feed connection is made into the bottom horizontal bronze connection on the rear of the Econoplate. The cold feed may either be from a cold feed storage tank, which can itself be boosted if required, or directly from the mains. An unvented kit of components, required by Part G3 of the Building Regulations 2000 amended in 2010 and complying with any Installation Requirements for Bylaw Compliance, can be provided to complete the package when the cold feed is boosted or mains fed. The hot water service flow is connected to the top bronze connection, again on the rear of the Econoplate. This connection can be identified by noting the electrical temperature probe fitted into it. A secondary recirculation must be maintained at all times, either around the installation, or locally to the Econoplate. For this purpose, a connection is provided in the bronze cold feed casting, or alternatively if the optional secondary recirculation pump (complete with non-return valve) is provided, then the connection is made onto the pump. SEMI-INSTANTANEOUS HOT WATER APPLICATIONS: When hot water is drawn from a storage vessel into the distribution system to the taps and the vessel is heated directly by the Econoplate, this is termed semi-instantaneous hot water generation. This type of installation particularly suits applications which have low cold feed pressures, sporadic usage or insufficient boiler power available. The cold feed connection is made into the bottom of the vessel; the cold feed can still be either from a cold feed storage tank, which can itself be boosted, or it can be mains fed. The same restrictions/requirements as above apply, with the additional requirement of a Temperature & Pressure relief valve(s) (T&P Valve). The Econoplate is fitted with a transfer pump which draws water from the bottom of the vessel at the design flow-rate of the Econoplate. This water enters the Econoplate through the lower bronze connection and is heated to the desired temperature. It is then pumped from the top bronze connection into a top connection on the vessel. The flow-rate should be set using the speed control on the pump, or, if a more accurate method is required, a flow setting device can be supplied or a double regulating valve could be incorporated in the pipework. In many cases a simple lockshield valve may suffice. Hot water flows from the top of the vessel into the distribution system and to the taps. No hot water return is required for the operation of the Econoplate in this type of system. N.B. Isolating valves should be fitted to all circuits. OTHER APPLICATIONS: Many other applications other than hot water service can be catered for. The lower connection on the unit is the return and the top connection is the flow. RECOMMENDED MINIMUM CLEARANCES FOR MAINTENANCE: 450mm front, 300mm pump side, 150mm other side

11

SECONDARY CONNECTIONS: INSTANTANEOUS SYSTEM WITH MAINS COLD FEED CONNECTION:

LEGEND

SAFETY VALVE

DOUBLE NRV

SINGLE NRV

ISOLATION VALVE

AUTO AIR VALVE

DRAIN VALVE

HWS DRAW OFF

EXPANSION VESSEL

RECIRC PUMP

COLD WATERSERVICE

PLATE HEATEXCHANGER

PRESSUREREG VALVE

N.B. COMPLIANCE WITH WATER BY-LAWS, BUILDING REGULATIONS & ANY OTHER APPLICABLE STANDARDS SHOULD BE CHECKED PRIOR TO INSTALLATION

MAINTENANCE LOCKSHIELD VALVE (PROHIBITED BYU.K. REGULATIONS)

SECONDARY CONNECTIONS: SEMI-INSTANTANEOUS WITH STORAGE AND MAINS COLD FEED CONNECTION:

LEGEND

SAFETY VALVE

DOUBLE NRV

SINGLE NRV

ISOLATION VALVE

AUTO AIR VALVE

DRAIN VALVE

HWS DRAW OFF

EXPANSION VESSEL

RECIRC PUMP

COLD WATERSERVICE

PLATE HEATEXCHANGER PRESSURE

REG VALVE

N.B. COMPLIANCE WITH WATER BY-LAWS, BUILDING REGULATIONS & ANY OTHER APPLICABLE STANDARDS SHOULD BE CHECKED PRIOR TO INSTALLATION

MAINTENANCE LOCKSHIELD VALVE (PROHIBITED BYU.K. REGULATIONS)

LOCKSHIELDISOLATION VALVE

HWS RETURN

HWS FLOW

HWS BUFFERVESSEL

ANTI VAC VALVE

SETTER VALVE

T & P VALVE

PHE TRANSFERPUMP

ALTERNATIVEPOSITION FORT & P VALVE

12

ELECTRICAL DETAILS: E4A+0R (230V, 1-phase): Full-load current = 1.18A E4B+0R (230V, 1-phase): Full-load current = 3.80A E4B+0R (400-415V, 3-phase): Full-load current = 1.50A/phase When a secondary recirculation pump (+1R) or a secondary transfer pump (+1T) has been opted for, the corresponding amperage below must be added to the above figure for total full-load current. UP20-45N (1-ph) + 0.52A, 120W UPS25-55N (1-ph) + 0.38A, 85W UPS32-55N (1-ph) + 0.46A, 105W UPS32-80N (1-ph) + 0.99A, 230W UPS40-60/2FB (1-ph) + 1.30A, 280W UPS40-60/2FB (3-ph) + 0.46A/phase, 250W UPS40-120FB (1-ph) + 2.20A, 470W UPS40-120FB (3-ph) + 0.92A/phase, 460W UPS50-120FB (1-ph) + 3.60A, 760W UPS50-120FB (3-ph) + 1.30A/phase, 720W An external electrical supply isolator should always be fitted adjacent to the unit. The supply itself should be provided with suitable protection in accordance with current IEE regulations and codes of practice. EXTERNAL CONNECTIONS: Common Temperature Alarm A rise of 10°C above the set point or a fall of 20°C below the set point causes an alarm relay to be energized. A pair of volt free terminals, which close on a fault (after a given time), are available for external indication. External Interlock An external safety device or switched circuit can be connected to the Econoplate which will shut the unit down in case of a fault. It is a safety extra low voltage circuit; an open circuit should be used to shut the unit down. External “Clock” An external device can be connected to switch between 2 temperatures, or to switch between a single set point and off. A closed contact across this safety extra low voltage circuit gives the “day” setting and an open circuit the “night” setting. External Temperature indication A 4-20mA output gives an indication of the secondary flow temperature, it is a linear scale, 4mA = 0°C, 20mA = 99°C (24V supply @ 470 ohm). Fuse Protection The electronic controller is protected by a 500mA fuse and the main p.c.b. output side is protected by a 10A fuse; both are located on the p.c.b.

WARNING NEVER RUN CONTROL CABLES USING LOW VOLTAGES WITH POWER CABLES; INDUCED VOLTAGES CAN AFFECT THE OPERATION OF THE CONTROLLER.

13

OPERATION: Prior to switching the Econoplate on, it must be ensured that the unit is filled with water and that all pipework and pumps are vented. Once this is complete and the unit is on, the Econoplate Controller should be set up as described in the Econotrol 2100 Controller Manual (see later) to suit the particular requirements of the client. As above, the pump(s) should be vented; on the E4B ranges, a 3-phase pump may be fitted, therefore the direction of rotation must also be checked. In all cases, the pump run current should be measured, and on the E4B ranges the overloads set accordingly. Primary pump overload trip is indicated on the LCD display, and on E4B duplex units, auto-changeover is also included. These functions should also be checked. On all units, the travel of the motorized valve should be checked by simulating a load/no load situation. The limit switches should be adjusted if necessary to prevent the motor driving up against the mechanical stops. This is done by removing the actuator cover which exposes the rotating cam assembly. There are 4 adjustment screws on the cam block; of these 4 screws, the black screws are used to set the actuator travel. Screw 1 sets the close limit position and Screw 2 sets the open limit position, as shown below:

14

MAINTENANCE: If the installation is set up as per the above instructions, and if the pre-set factory values are unchanged, the Stokvis Econoplate unit should not need dismantling for service for many years. A large temperature drop between inlet and outlet of the primary circuit, but lack of hot water indicates a lack of primary flow, possibly due to an external blockage. Any internal clogging may be detected as follows: - A high pressure drop between inlet and outlet of the secondary hot water circuit. - A small temperature drop between inlet and outlet of the primary circuit (under

20°C at full load) indicates the exchanger is clogged. - A lack of water at the design temperature on the secondary circuit. A plate pack always has a 4-hole first plate which has a gasket around all 4 ports. This plate sits against the fixed yellow chassis plate with the gasket facing the fixed chassis plate. Next are a number of intermediate plates which should be fitted so that the chevron pattern, stamped on the plates, alternates up then down on adjacent plates, with the gasket facing the fixed chassis plate. Finally a blank plate with no ports is fitted, again with the gasket facing the fixed chassis plate. If it is required to clean the plate pack, the below instructions should be followed: - Isolate the exchanger, primary side first allowing the temperature to fall below

40°C and then isolate the secondary side. - Reduce the pressure by opening the vents and drain both primary and

secondary. - Carefully release the securing bolts between the frame and front plate. Slacken

the bolts in sequence to reduce stress on individual bolts. - Remove the plates one at a time from the unit leaving the last plate in situ

against the fixed chassis, unless you have new chassis liners available. If possible, keep the plates in order ready for reassembly; otherwise refer to the following notes. Specific instructions are available on request for all plate types, which can be identified in the following way: • Current GCP-009 plates have thinner circular gaskets around ports. • Previous GC-030 plates have thicker octagonal gaskets around ports. • GC-030 plates have more of the corner cropped than the GCP-009 plates. N.B. GCP-009 and GC-030 plates must not be mixed.

15

- Carefully clean the plates using a nylon brush and warm water (do not use a metallic device). A proprietary de-scaling agent may be used if necessary. Rinse thoroughly with clean fresh water. Always follow the correct safety procedures when handling chemicals. Reassemble the plates in the same order that they were removed.

- Replace front plate and tighten the bolts in a similar manner to that used on an

automobile cylinder head to ensure an even distribution of force over the surface of the plate, see below:

The correct tightening figure is checked by measuring the distance between the moveable front plate and the fixed rear chassis plate and should be calculated as follows: • GCP-009 – 3.1mm +/- 0.05mm x the number of plates • GC-030 – 3.0 to 3.1mm x the number of plates This should be measured next to each bolt to ensure even tightening of the bolts.

- A visual check on the correct assembly can be made by looking at the edge of

the plates. A pattern resembling a honeycomb should always be seen:

- If the plates are dirty, it is important to also clean the temperature sensor.

16

Recomended bolttightening sequenceView from front

1

23

4

5

67

8

FAULT FINDING: LITTLE OR NO HOT WATER AT OUTLETS: 1. Check the external electrical supply to the unit – reinstate if necessary. Check

control panel isolator switch is in the ON position. 2. Check for the LCD display on the control panel – if not on, check/replace

500mA control fuse. 3. If the 500mA fuse repeatedly blows, set the Econoplate to give temporary hot

water (see Temporary Operation) and replace the p.c.b. as soon as possible. 4. If there is an LCD display but no apparent outputs to pumps etc, check the 10A

output fuse on the p.c.b. If it is blown, make electrical checks on all pumps and valves fitted to the unit. Repair/replace or isolate faulty item and replace 10A fuse.

5. Check that the primary pump is operating – check the pump overload if fitted,

check the pump rotation by removing the pump end cap, check that there is a start signal to the pump. Replace pump head or switch permanently to standby pump if available.

6. Check that the primary supply temperature is correct and that there is nothing in

the external pipe work that could restrict flow e.g. faulty pumps, strainers, non-return valves, isolating valves, air locks etc. This would show as a large temperature drop on the primary but with a lack of hot water.

7. Check the secondary pump is operating, particularly if the display indicates set-

point achieved, but no hot water available. 8. Check to ensure correct connection of valve and actuator as described

previously in the Operation section. 9. Check that the motorized valve is mechanically operating – place in manual

operation and move the valve through its travel to check for seizure. Strip and clean or replace as required.

10. Check that the valve motor is electrically operating – raise and lower the set

point on the controller and observe. If the motor does not work, see Temporary Operation.

11. Check the ΔT across inlet and outlet of the primary circuit; a small temperature

drop (under 20°C at full load) indicates that the heat exchanger is contaminated with debris causing clogging.

FLUCTUATING TEMPERATURES AT OUTLETS:

1. Check that the secondary pump is operating correctly and that good circulation

exists – carefully feel the temperature of the return pipe, if it is cool then there is no circulation.

17

2. Check that a non-return valve is fitted on the HWS return; if fitted, check that it is

not letting by and so allowing the incoming cold water to enter the HWS distribution system return – carefully feel for a cool return pipe.

3. Check that the motorized valve is opening and closing in response to changes in

demand – raise and lower the set point on the controller or open and close some hot water taps and observe the valve. Also check that the linkages between the valve and motor are secured.

4. Check that the motorized valve is responding by moving in the correct direction – test as above. If incorrect, electrically isolate the Econoplate and reverse the + and - valve motor connections on the p.c.b. Reinstate the electrical supply and check again.

5. Check that the temperature sensor is not scaled – isolate the secondary side of

the unit and remove the sensor. Clean as appropriate. If heavily scaled, the plate heat exchanger is likely to be similarly affected. Strip and clean as necessary (see Maintenance).

REDUCED OUTPUT: 1. A reduced output may be as a result of a blockage of the heat exchanger, as well

as any of the above mentioned causes. See Maintenance for cleaning. LEAKING FROM THE PLATE HEAT EXCHANGER:

1. Check that the heat exchanger is bolted up fully – measure the space occupied

by the plates, next to each bolt. The gap between the chassis plate and front clamping plate should be checked (see Maintenance for figures). If this is not correct, relieve the pressure on primary and secondary side and tighten to the correct figure (see Maintenance). If the unit still leaks, the affected plates should be replaced.

2. Check that the maximum operating pressure has not been exceeded at any time. NO WATER FROM HIGHEST OUTLET:

1. The resistance through the heat exchanger exceeds the static head/pressure of

the cold feed. If water flow has deteriorated from when originally installed, strip and clean the heat exchanger (see Maintenance). If scaled up, also clean the temperature probe. If new, investigate the effect of turning off HWS recirculation pumps, where they are installed, on the HWS return. If water flow is improved, try operating the pump on a lower speed, or reinstall it on the HWS flow, perhaps with a bypass and non-return valve if the Econoplate flow exceeds the maximum flow of the pump. Another option could be to install a larger pump on the cold feed connection with the HWS return teed into the cold feed on the suction side of the pump.

18

TEMPORARY OPERATION:

TO PROVIDE HOT WATER IN THE EVENT OF COMPONENT FAILURE IS ACHIEVED AS FOLLOWS: a. Ensure that there is no electrical supply to the valve actuator. Open the 4-port

valve fully by hand (pointer at No 10 on the valve scale) by releasing the steel arm (on valve) from the black arm (on actuator) and rotating, as shown below:

b. Ensure that there is an electrical supply to a primary and secondary pump and link the start/stop terminals for pump(s) if not already made.

c. Reduce the boiler flow temperature to a maximum of 65°C to prevent excessive

secondary temperatures. d. Set the high temperature alarm to automatic – refer to “Econotrol 2100 Manual”

for procedure (see later). N.B. If fitted with an additional high temperature primary shut off 2-port VKR valve and AKF actuator, this will also need to be in the open position. To do this, ensure that the electrical feed from the Econotrol to the limit stat (and subsequently to the AKF actuator) is live or made live. If either the valve/actuator/high limit/auxiliary relay has failed, then manually open the valve (remove drive).

19

PARTS LIST: CURRENT MODELS CONTROLLER & SENSOR (ALL): ESS8133 Econotrol 2100 controller exc. Enclosure ESS6600/1 E Series Adjustable Temperature Sensor 1/8” BSP PT100 VALVE & ACTUATOR: ESS7019 Sauter 4-port Valve Gasket Set (40mm E4A/50mm E4B) ESS7022 Sauter 4-port Valve MH42F50 DN50 (E4B) ESS7024 Sauter 4-port Valve MH42F40 DN40 (E4A) ESS7025 Sauter AR30W21F001 Actuator to suit MH42 valve ESS7026 Sauter MH42 to AR30 Actuator mounting kit ESS7027 Sauter 4-port Valve MH42 Seal kit No. 24 HEAT EXCHANGER PLATES & LINERS (ALL): GCP009H BLANK No-hole Blank/End Plate GCP009H INT Intermediate Plate GCP009H START 4-hole First/Start Plate ESS4647 43mm Through-Frame Liner GCP009L INT Intermediate Plate (low pressure drop) (E4AxxL/E4BxxL) PUMPS: N.B. “New Style” pumps have “commando” type electrical connections. E4A “New Style” Primary Pump UPS40-80F 1-phase (95906463) E4A “New Style” Duplex Primary Pump UPSD40-80F 1-phase (95906464) E4B Primary Pump UPS50-120F 1-phase (96402101) E4B Primary Pump UPS50-120F 3-phase (96402103) E4B Duplex Primary Pump UPSD50-120F 1-phase (96408910) E4B Duplex Primary Pump UPSD50-120F 3-phase (96408912) Optional Secondary Pumps: “New Style” UP20-45N 1-phase (95906472) (E4A) “New Style” UPS25-55N 1-phase (95906772) (E4A) “New Style” UPS32-55N 1-phase (95906773) (E4A/E4B) “New Style” UPS32-80N 1-phase (95906448) (E4A/E4B) UPS40-60/2FB 1-phase (96401921) (E4B) UPS40-60/2FB 3-phase (96401923) (E4B) UPS40-120/2FB 1-phase (96401949) (E4B) UPS40-120/2FB 3-phase (96401951) (E4B) UPS50-120/2FB 1-phase (96402108) (E4B) UPS50-120/2FB 3-phase (96402110) (E4B) CHASSIS COMPONENTS: Guide pins M16 x 200mm (up to 35 plates) Guide pins M16 x 250mm (37-49 plates) Guide pins M16 x 330mm (51-59 plates) M16 Hex Set Screws x 130mm (up to 17 plates) M16 Hex Set Screws x 180mm (19-27 plates) M16 Hex Set Screws x 200mm (29-43 plates) M16 Hex Set Screws x 250mm (45-55 plates) M16 Hex Set Screws x 300mm (57-59 plates) EC270032160 Non-Return Valve Watts 1¼” (F-F) NN020 Non-Return Valve Watts ¾” 230020165 (M-F) Drain cock ½” male

20

CONTACTOR & OVERLOAD: ESS8121 Telemecanique overload 1-phase LR2-K0306 (E4A Optional) ESS8123 Telemecanique overload 1-phase LR2-K0310 (E4B) ESS8124 Telemecanique overload 3-phase LR2-K0307 (E4B) ESS8125 Telemecanique contactor LC1-K0610U7 OPTIONAL EXTRAS: 2-port Primary Shut Off Valve – Sauter VKR040F300-FF40mm, Rp 1½”, PN40 (E4A) 2-port Primary Shut Off Valve – Sauter VKR050F300-FF50mm, Rp 2”, PN40 (E4B) Primary Shut Off Valve Actuator – Sauter AKF112F120 AT603 – High Limit Thermostat – Jumo 603070/0070-5 211-1304 – 230V Interlock Relay 541-3120 – Box of 10A Fuses (10 No.) 563-463 – Box of 500mA Fuses (10 No.)

21

PARTS LIST: PREVIOUS MODELS CONTROLLER & SENSOR (ALL): ESS8122 Integral ‘E’ series controller complete (yellow fascia red display) ESS8100/1 ‘E’ Series Temp Regulator (Square Type p.c.b.) from Oct ’93 ESS8106 ‘E’ Series 24 Hour Clock (Flash Type) for ESS8101 ESS6600 Temperature sensor 1/8” BSP 38mm VALVE & ACTUATOR (ALL): MH42F32 4-port Sauter Valve AR30W11 Sauter Actuator HEAT EXCHANGER PLATES & LINERS (ALL): ESS4627 G30H 4-hole First/Start Plate ESS4626 G30H Intermediate Plate ESS4625 G30H No-hole Blank/End Plate ESS4647 43mm Through-Frame Liner ESS4621 G30L Intermediate Plate (low pressure drop) (E4AxxL/E4BxxL) ESS8126 Stainless Steel Insert (for use with ESS8127) ESS8127 52mm Through-Frame liner (early units) N.B. Some units had “non-flanged” secondary connections which require no liners. PUMPS: N.B. “Old Style” pumps have screwed entry electrical connections. E4A “Old Style” Primary Pump Head & Terminal Box UPS40-80 1-phase (52992102) E4B “Old Style” Primary Pump Motor UPS50-120/2 1-phase (96406015) E4B “Old Style” Primary Pump Motor UPS50-120/2 3-phase (96406017) E4B Primary Pump Terminal Box with internal speed control & indicator lights for UPS50-120/2 1-phase (96405860) E4B Primary Pump Terminal Box with internal speed control & indicator lights for UPS50-120/2 & UPC50-120 3-phase (96404870) (E4B) Optional Secondary Pumps: UP20-45N, 1-phase (E4A) UPS32-55B, 1-phase (52001097) (E4A/E4B) N.B. Not available with screwed entry, can be converted with instructions available on request.

CHASSIS COMPONENTS: EC270020160 Non-return valve Watts ¾” (F-F)

22


E4SERIESIO&M102010ACa

ECONOTROL 2100 CONTROLLER INSTRUCTIONS


ECT2007 0311AC

Contents Page 3 General Specification & Fascia Layout Page 4 Display Menu & Function Menu Page 5 Settings Menu Page 6 Settings Menu (cont.) Page 7 External Connections Page 8 Summary of Display Menu, Function Menu & Settings Menu Page 9 Basic Wiring

2

GENERAL SPECIFICATION: The Econotrol 2100 is a purpose designed PID regulator which controls temperature via a motorized modulating valve as well as operating a number of primary and secondary pumps, as can be fitted to the various Econoplate units. In addition to the PID controller, the control panel contains: • Valve opening/closing and P1/P2 primary pump running functional indicator lamps • A 500mA control fuse and a 10A output fuse • Duplex pump duty share (if fitted) • High/low temperature alarm indication • Volt free common temperature alarm terminals • High temperature lockout • An extra low voltage external interlock circuit • A 4-20mA flow temperature indication circuit. Time control can be by: either the internal inbuilt 7 day time clock for either 2 temperatures of operation or a single temperature and night off per day, or externally using the extra low voltage “external time clock” circuit for either 2 temperatures of operation or a single temperature and night off. If primary pump overloads are included, overload trip indication is available on the panel. On duplex units with overloads, auto-changeover on primary pump fault is also possible. FASCIA LAYOUT:

3

DISPLAY MENU: The current SET POINT is default displayed; to view any one of the other display options press either the t or u key to move from one to the other. DISPLAY options: -DAY of the week & TIME (24 hour clock) -Secondary water flow TEMPERATURE (°C) -EXTERNAL INTERLOCK, shown only if an external interlock has been connected and activated -HIGH TEMPERATURE ALARM, shown only if the alarm temperature has been exceeded (factory set at 10°C above the higher set point) -LOW TEMPERATURE ALARM, shown only if the alarm temperature has been exceeded (factory set at 20°C below the current set point) -PUMP OVERLOAD TRIP, shown only if a primary pump, P1 or P2, overload has tripped (only available on units fitted with contactor overloads with auxiliary contacts) FUNCTION MENU: The FUNCTION options are accessed by pressing either 8 key. To move from one option to the next press either the t or u key. To view the current status of an option press the h key. To change the current status press either the t or u key. To enter/select this change press the h key. To return to the DISPLAY press the 3 or 4 key. -The DAY<FROM>NIGHT function is used to change from one mode of operation to the other, e.g. if you were running in night mode and the unit was off, if you wanted hot water as you had during the day, by using this function you can swap over from the night setting to the day setting. When the unit next operates in the day mode the unit will revert back to normal operation. -The HIGH TEMPERATURE RESET only operates if a high temperature lockout has occurred; using it restarts the unit and resets the external volt free temperature alarm. -The RESTORE DEFAULTS option is used to return to the factory values for all settings. A further “Are You Sure” prompt appears on the display prior to this function being actioned.

4

SETTINGS MENU: The SETTINGS are used to set all of the parameters which have an influence on the way in which the controller will work. There are default values for all of these parameters, which are given in the SUMMARY OF SETTINGS table (see later). The SETTINGS options are accessed by first pressing and releasing the 4 key to enter FUNCTION then pressing and holding the 4 key for 5 seconds and then releasing. To view the current status of a setting, press the h key. To select a particular parameter within a particular setting, press the h key (the parameter will now flash) To change the current value of a parameter, press the t key. To move to the next parameter, press the 4 key. To enter this change, press the h key (the parameter stops flashing). To move to the next setting, press the t or u key. To return to the SET-POINT DISPLAY, press the 3 or 4 key twice, or leave for 30 seconds. -TIME, this includes the current day of the week, time, in hours, minutes and seconds, based on a 24 hour clock. -CLOCK, the unit can run on its internal clock or it can be controlled from an external source, (default setting is internal clock – INT). -DAILY DAY, TIME & TEMPERATURE, this is used, for each day of the week to set the start time for the day operation and the temperature. The temperature range is from 01°C to 99°C, alternatively OFF can be selected. -DAILY NIGHT, TIME & TEMPERATURE, this is used for each day of the week, to set the start time for the night operation and the temperature. The temperature range is from 01°C to 99°C, alternatively OFF can be selected. -EXTERNAL CLOCK DAY, TEMPERATURE, this is used to set the temperature for the day operation when controlled by an external source. The temperature range is from 01°C to 99°C, alternatively OFF can be selected. -EXTERNAL CLOCK NIGHT, TEMPERATURE, this is used to set the temperature for the night operation when controlled by an external source. The temperature range is from 01°C to 99°C, alternatively OFF can be selected. HIGH TEMPERATURE ALARM, this is used to set the temperature difference above the higher set point at which an alarm mode occurs. The temperature difference is from 01°C to 99°C, alternatively OFF can be selected. LOW TEMPERATURE ALARM, this is used to set the temperature difference below the current set point at which an alarm mode occurs. The temperature difference is from 01°C to 99°C, alternatively OFF can be selected.

PROPORTIONAL BAND, a high proportional band will produce slow response but no overshoot, the set point may never be reached, a low proportional band will produce a fast response but a big temperature overshoot and prolonged oscillations in temperature may occur

5

DIFFERENTIAL, this term helps the controller approach the set point more rapidly with less overshoot. The higher the value the more the differential term works, and in theory the better the response, however there is a limit above which the system will respond too quickly to small errors and become unstable. -PUMP MODE, this is used to determine which pump output is used. If a single primary pump is connected to the P1 terminals then P1 ON should be selected. If a single primary pump is connected to the P2 terminals then P2 ON should be selected. If a twin headed (duplex) pump is fitted, one will be connected to P1 the other to P2, P1/P2 should be selected which will then perform duty share on the 2 pump heads. -ALARM MODE, there are 3 automatic and 1 manual reset high temperature alarm modes: AUT1 - If the secondary temperature measured is greater than the high temperature alarm value, the LCD indicates this. If this persists, the unit is shut down, all pumps are turned off, and the modulating valve is closed. The common temperature alarm lamp is lit and the common temperature alarm volt free terminals are closed. Auto reset occurs once the temperature has fallen below the alarm temperature. AUT2 - If the secondary temperature measured is greater than the high temperature alarm value, the LCD indicates this. If this persists, the unit is shut down, all pumps are turned off, and the modulating valve is closed. The common temperature alarm lamp is lit and the common temperature alarm volt free terminals are closed. Subsequent high temperatures cause an almost immediate shut down. Auto reset occurs once the temperature has fallen below the alarm temperature. AUT3 - If the secondary temperature measured is greater than the high temperature alarm value, the LCD indicates this. If this persists, the common temperature alarm lamp is lit and the common temperature alarm volt free terminals are closed, the unit is not shut down. Auto reset occurs once the temperature has fallen below the alarm temperature. MAN - If the secondary temperature measured is greater than the high temperature alarm value, the LCD indicates this. If this persists, the unit is shut down, all pumps are turned off, and the modulating valve is closed. The common temperature alarm lamp is lit and the common temperature alarm volt free terminals are closed. To reset the alarm, go into FUNCTION and select HIGH TEMP. RESET.

6

EXTERNAL CONNECTIONS: Electrical Supply The controller operates with a 230V supply. An external electrical supply isolator should always be fitted adjacent to the unit. The supply itself should be provided with suitable protection in accordance with current IEE regulations and codes of practice. Internal Fuse Protection The electronic controller is protected by a 500mA fuse and the main p.c.b. output side is protected by a 10A fuse; both are located on the p.c.b. Common Temperature Alarm If either the high or low temperature alarm value is exceeded, a relay is energised closing a pair of volt free terminals for external indication. External Interlock An external safety device or switched circuit can be connected to the Econoplate which will shut the unit down in case of a fault. It is a safety extra low voltage circuit; an open circuit should be used to shut the unit down. External “Clock” An external device can be connected to switch between 2 temperatures, or to switch between a single set point and off. A closed contact across this safety extra low voltage circuit gives the EXT CLOCK DAY setting and an open circuit the EXT CLOCK NIGHT setting. External Temperature indication A 4-20mA output gives an indication of the secondary flow temperature, it is a linear scale: 4mA = 0°C, 20mA = 99°C (24V required @470 ohm). WARNING NEVER RUN CONTROL CABLES USING LOW VOLTAGES WITH POWER CABLES; INDUCED VOLTAGES CAN AFFECT THE OPERATION OF THE CONTROLLER.

7

SUMMARY OF DISPLAY MENU:

SUMMARY OF FUNCTION MENU:

SUMMARY OF SETTINGS MENU:

8

BASIC WIRING:

L N EN - M +

ALARM

1 PHASESUPPLY

P2P1

(OPTIONAL)SECONDARY PUMP

P1/P2 F.L.C. 1.0A

P3 F.L.C. 0.5A(20-45/25-55) OR0.58A(32-55) OR0.62A(40-50) OR1.0A(32-80/40-80)

EXTERNAL CLOCKN/C = DAY SET POINT

EXTERNAL INTERLOCK

N/O = NIGHT SET POINT

BA

SENSORCLOCK I/LOCKEXTEXT

- +EE ENN

P2

P3

P1

PUMP 1PRIMARY

PUMP 2PRIMARY

(OPTIONAL)

AMMETER

470NIGHT

P1 O/L P2 O/L

N/C = NORMAL OPERATIONN/O = EXT SAFETY TRIPPED

24V

STOKVIS ENERGY SYSTEMS, 96R WALTON ROAD, EAST MOLESEY, SURREY, KT8 0DL. Tel. 44 (0)870 770 7747

E & C SERIES BASIC WIRING DETAIL - 240V ECONOTROL 2100 Title

TIL/E/030/C

STK-WIR-E-044/AJUL 10 Date

CAD refCode No

R.S.Drawn Drawing No

DATEISSUE MODIFICATION

4-20mA

DAY

W-E-044/A

P1

(OPTIONAL)SECONDARY PUMP

P3

P1

PUMP 1PRIMARY

N

P1/P3 CONNECTION SIMPLEX MODELS

4-20mA EXTERNAL TEMPERATURE INDICATION4mA = 0.C20mA= 99.C@ 470 OHM

M

ACTUATORTERMINALS

ACTUATOR TERMINALS

ECONOTROL AR30 AVR32 AVM234

-M

+

2

1 1 1

3

3 2

2A

2B

AVM124

1

2A

2B

OPTIONAL HI LIMIT STAT

For a particular Econoplate heat exchanger the Econotrol may be combined with other control equipment. To obtain specific wiring diagrams please quote the TIL/E/xxx Code Number from the Econoplate data badge.

9


ECT2007 0311AC

Documents

ECONOPLATE E4 SERIES IO&M 102010ACa - Stokvis Industrial … · 2019-05-10 · GENERAL DESCRIPTION: The Stokvis Econoplate E4 series of packaged plate heat exchangers are available