RTM-RETHERM MODULE MODELS RTM, RTM ... 2 & RTM-e

INSTALLATION, OPERATION & MAINTENANCE MANUAL

RTM

Ii'.'

PART NUMBER DESCRIPTION KEY

102A597P04 Blower Motor 2

101A533P04 Blower Wheel 3

300B025P41 Heating Element 4

302B311POl Heating Element Spacer

302B311P02 Heating Element Clamp

501C432POl Diffuser Panel 5

302B346GOl Door Assembly 6

103A113POl Door Handle

103A066POl Door Latch 7

302B352POl Door Strike

103A06geQJ Hinge Ein4D.o.oq- _8

---------- -103A068P01---~------~Two-Hole-Washer-EHinge-Pifl1~----- --~ ~---~--.-... --.-

100A319P02 Spacer (Door Hinge) 9

102A616P21 Pivot Bushing (Door Hinge) 10

101A501P03 Switch - Red Indicator 11

102A932P03 Pilot Light (Computer) 12

102A932POl Pilot Light (Manual) 13

100A078P27 Thermostat (Manual) 14

102A963POl Thermocouple (Manual T-Stat)

102A963P02 Sensor (Digital T-Stat)

101A501P15 Selector Switch 15

100A096POl Fuse Holder 16

100A095POl Fuse (15amp)

101A657P15 Heat Contactor 17

101A657P13 Blower Relay 18

101A316P08 Transformer (Control Circuits) 19

101A485P06 Terminal Block

101A657P21 Relay (Heat & Fan Control) 20

103A067POl Harness (Digital Control Panel)

01/06 6

S (ON '9/'\U -----:11nO!:J:J ~ 8iTvJ1O . .

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KEY

2 3 4

5 6

7 8

9 10 11 12 13 14

PiN

l02AS97P04 lOlAS33P04 300B02SP41 302B3llPOl 302B3llP02 SOlc432POl 302B346GOl 103Al13POl 103A066POl l03A069POl 103A068POl lOOA319P02 l02A616P2l lOlASOIP03 l02A932P03 l02A932POl lOOA078P18

RTM PARTS LIST

DESCRIPTION

Blower Motor Blower Wheel Heating Element Heating Element Spacer Heating Element Clamp Diffuser Panel DooF Assembly Door Handle Door Latch Hinge Pin, Door Two Hole Washer, Hinge Pin

. Spacer, Door Hinge IPivot Bushing, Door Hinge Lighted Power Switch Pilot Light - Computer Pilot Light - Manual Thermostat, Manual

1071£9-03"1'01 InennocQuple, 11anual rhel.illas["a:T _._. ___ . ____ .. ____ .. ___ . _______ LQ2A_9_6_3_P_02 ____ SensDr_,_D_i_g .. iLa~T_h.er.mD_sLa._t_.

15 16

17 18 19

20

21

22 23

24 25 26

lOlA501P15- Selector-Switch . 1 0 0 A 0 9 6 POI F use HoI d, e r lOO4-095POl Fuse, 15 'Amp. 1 0 I A 6 5 7 PIS ' C o,n t act 0 r; , H eat lOlA657P13 Relay, Bl.ower lOlA316P08 'Transformer, Cont;rol Circuits lOlA485P06 Terminal Block lOlA657P16 Relay, He'at & Fan Control 1 0 3 A 0 6 7 POI H a r n e s s, Dig i ,t a 1 Con t r 0 1 P 2i n e 1 103A065GOl Cooling Fan Assembly lOlA 5 78 POI Cool in g Fan M,o tor 1 0 0 A 0 9 0 P 0 5 Coo Ii n g Fan B 1 ad e 501C438POl Control Panel, Manual 302B347GOl Control Panel Assembly (Digital) l02A682P04 Digital Panel (Solid State) lOlA501P02 Door Switch lOOA880P02 Return Spring, Door Switch 1 0 0 A 0 8 2 P 0 2 The rill 0 s tat, Pre set, He at Lim i tin g (4 4 4 - 14 14 ) lOOA082P03 Thermostat, Preset, Heat Regulating (444-1413 3 0 2 B 3 4 4 G 0 1 Pan G u i d ,e Ass em b 1 Y SOlC320P02 Door Rack 50lC32lPOl Cassette l02A845POl Gasket, Silicon Rubber 302B345POl Gasket, Vertical (Stainless Steel) 302B345P02 Gasket, Top (Stainless Steel) 302B345P03 Gasket, Bottom (Stainless Steel)

INSTALLATION/OPERATION AND MAINTENANCE MANUAL"'"' "

FOR THE CATR RETHERMALIZING MODULE

MODEL NUMBERS

RTM

RTM 1

RTM2

Rethermalizing Module, Only, Side Loading.

Single Rethermalizing Oven, includes: RTM, Module, (1) Model ST -1 Stand W/Bullet Feet Top Deck

Double Rethermalizing Oven, Includes: RTM, Module, (2) Model ST -2 Stand W/Bullet Feet Top Deck (1) Stacking Positioners (6)

RTM 1C Single Prison Model RethermaJizing Oven Including:

RTM, Module (1) Prison Modification Package (1) Model ST -1 Stand W/Bullet Feet Top Deck Model PL Pan Guide Assembly (2)

RTM2C Double Prison Model Rethermalizing Oven Including:

RTM Module (2) Prison Modification Package (2) Model ST -2 Stand W/Buliet Feet Stacking Positioners (4) Top Deck (1) Model PL Pan Guide Assembly (4)

***QPTIONAL ACCESSORIES***

ST-1M ST-2M DR CR

PL 302B361P01 OTT -20

Stand with Casters. Stand with Casters. Door Rack for preportioned dishes. Cassette rack for pans, placed in rethermalization cavity. Pan Guides Wire Shelf for pan guides. Trolley, for use with door rack or pan cassette.

2

SPECIFICATIONS

Material: Exterior - Including sides, back, and door 20 gauge type 304 stainless steel

#3 finish.

Interior - Including cavity liner and door liner 18 gauge type 304 stainless Steel, #2 B finish.

Insulation: Special high temperature mineral wool as follows: Top & Bottom - 2-1/4" thick, Sides -1-5/8" thick Door - 1-112" thick, Back -1-1/2" thick

Dimensions: RTM 1

RTM2

Overall - Width - 30-7/8", Depth - 29-1/2" (30-7/S" Including Handle), Height - 5S-3/4"

Overall - Width - 30-7/8", Depth - 29-1/2" (30-7/S" Including Handle), Height - 5S-3/4"

RTM Module (Single Cavity)

ST 1

Overall- Width - 30-5/8", Depth - 29-1/2" (30-7/S" Including Handle), Height - 25-1/4"

Crated Dimensions -Width - 36", Depth - 35-1/4", Height - 32-3/4" Shipping Weight - 235 Ibs.

Cavity -Width - 23", Depth (To Baffle) - 15 3/16", Height - 20"

Stand Assembly, RTM-1 Overall - Width - 30-7/S", Depth - 2S-3/4" Height - 34-314", Shelf Height - 33-1/4" Shipping Weight - 55 Ibs.

ST 2 Stand Assembly, RTM - 2 Overall- Width - 30-7/8", Depth - 2S-3/4" Height - 7-3/4", Shelf Height - 6-1/4" Shipping Weight - 65 Ibs.

3

. J~ ....

Door:

Stainless steel pan type, reinforced for support of door rack, and provided with silicon rubber gasket, heavy-duty pin type hinges, roller type latches, and permanently affixed vertical handles.

Racks:

Door Mounted

Width - 20", Depth -14-118", Height -17-114", Spacing - 4" Shipping Weight: 13 Ibs.

Easily removable, each provided with five shelves for portioned foods. Each shelf with sufficient area for two portioned meals, using two plates and two soup/cereal bowls. Accommodates 9" plates. Constructed of electrolis nickel plated steel.

Cassette: (To accommodate bulk food in pans)

Electrolis nickel plated cassettes are designed to accommodate five full sized (12" x 20" x 2 %") pans and, with the use of an OTT-20 trolley, allow changing out of the completed load in the rethermalizing unit to another cassette load of bulk food or a door mounted rack complete with a load of portioned food.

Cassette dimensions - Width - 22", Depth -14-1/2" Height -18-3/4", Shelf Spacing - 3 %". Shelves are 14-1/2" x 21-3/8". Shipping Weight - 221bs.

Pan & Shelf Guides:

Removable stainless steel guides are provided to accommodate five full size (12 x 20) pans 2-1/2" deep. No-tip guides are spaced on 3-1/4" centers. (Prison models are furnished with non-removable pan guides.)

Optional wire shelves are available for use with pan guides. These are needed for fractional size pans.

Material -

Pan Guides -16 gauge type 304 stainless steel Pan Guide Supports - 14 gauge type 304 stainless steel

Control Panels: (See separate page for details and illustration)

4

Top Segment

Includes a lighted on-off switch which is lighted to indicate power is "on". Two separate pilot lights are provided which indicate the "Computer Controlled" or "Manually Timed" mode which is selected by the rear mounted selector switch.

Bottom Segment

Includes a solid state electronic control which is programmable to provide four programs/cycles, each with a precise temperature and rethermalizing time.

A three segment digital time or temperature readout, six push button switches, and four pilot lights are provided.

Rear Mounted

Includes two fuseholders, a manual/computer selector switch, and an electronic back-up thermostat for manually timed rethermalization.

Electrical Components:

Each standard module is furnished with (3) tubular sheathed heating elements, each rated 2650 watts, 208 volts or 230 volts (7.95 kw total) and a 1/3 hp blower motor with automatic thermal overload.

Electrical interlocks are provided to prevent operation of the heating elements without the blower motor.

A door switch is furnished which shuts off both the blower and heating elements when the door is opened.

ELECTRICAL SPECIFICATIONS PER MODULE

Heatiu<J RecejJtacIe Volts KW. Phase L-1 L-2 L-3 Configuration 208 8.5 1 41.1 41.1 - NEMA· ,> #6-S0R 208 8.5 3 24.8 22.7 22.2 NEMA #15-30R 230 9.0 1 37.9 37.9 - NEMA #6-50R 230 9.0 3 23.5 21.2 21.0 NEMA #15-30R

5

MAINTENANCE INSTRUCTIONS

WARNING

BEFORE PERFORMING ANY MAINTENANCE OR REPLACING ANY COMPONENT, DISCONNECT OVEN FROM ELECTRICAL POWER SUPPLY.

The information contained in this manual is intended for use by qualified personnel only, a corporation or company who are experienced in the repair of commercial food preparation equipment, familiar with all precautions required, and have complied with all the requirements of national, state, or local authorities having jurisdiction.

Service by other than qualified personnel may result in damage to the equipment and/or injury to the operator.

Should you require assistance in the selection of a qualified service agency, please contact the factory.

Adjustments: Many malfunctions attributed to defective material or faulty workmanship may be rectified by adjustment rather than the immediate replacement of parts.

DOOR OPERATION AND ADJUSTMENT:

Each RTM Module is provided with a left hand hinged door with a full 180° swing, mounting screws for door rack attachment, and adjustable roller latch.

Adjustment of the roller latch is accomplished by turning the threaded ball roller retainer of the latch to provide more or less pressure of the ball roller on the latch strike.

The latch strike is properly set at the factory and may be changed only by removing spacers which are used in the initial adjustment.

DOOR SWITCH ADJUSTMENT:

The door limit switch operates to allow the blower, and in turn, the heating elements, to be energized when the module door is fully closed.

Door switch adjustment is made with the digital control panel removed to allow access to the switch and door operated plunger.

A 1/4-20 x 1-1/2" hex head machine screw threaded into the plunger allows adjustment to the switch operation to insure that the blower motor will operate only when the door is fully closed and latched. A lock nut is provided to maintain proper adjustment.

6

To adjust, loosen the lock nut, adjust the bolt in or out as needed, and tighten the lock nut.

Caution: Moving the adjusting bolt too far can damage the switch and require switch replacement.

7

Cleaning of RTM's

Exterior:

CLEANING AND PREVENTIVE MAINTENANCE

Polished stainless steel may be cleaned and kept in good condition with a light oil such as SHEILASHINE. Saturate a cloth and wipe surfaces when cold, then wipe dry with a clean cloth.

Front surfaces: Baked on splatter, oil, grease, or light discoloration may be removed with the following products:

Grade FFF Italian Pumice Liquid Nu Steel Permapass

Samea or Cameo Paste Nu Steel or DuBois Temp. Heat tint

Heavy discolorations may be removed using the following:

Penny Brite Copper Brite

DuBois Temp. Past Nu Steel

5 to 15% nitric acid 5 to 15% phosphoric acid

Cleaners must be applied when the oven is cold. Rubbing or buffing MUST be done with the grain of the metal.

Do not use steel wool. For cleaning interior or exterior stainless steel surfaces, use Scotch-Brite or similar fiber type cleaners. Do not use Clorox or other chlorine based formulas for cleaning as these are destructive to stainless steel.

Control panels, switches, and exposed pilot lights require special care. Wipe off with dampened cloth. If necessary, use a spray of 409 (or similar) on the cloth. : 'i-DO NOT SPRAY CONTROL PANELS.

Interior: Racks, shelves, pan guides, cassettes, and wire shelves may be removed from the module and processed through a standard dish washer. Use care to prevent damage to these components.

Electrolis nickel coated blower wheels are cleaned by removing the diffuser panel, covering the heating elements and thermostat sensors, and spraying with 409 cleaner or similar solution. A padding of folded paper towels will catch dripping solution and removed soil.

8

Preventive Maintenance: Preventive maintenance should provide routine cleaning only, on a daily basis. Lubrication is not required, and any required maintenance should be performed by qualified personnel.

9

CATR RTM ENERGY APPLICATION

Preportioned Food Application 2 Cavities per RTM-2 Each cavity accommodates 10 trays (10 plates & 10 bowls) Each cavity = 8.5 kw x 2 cavities = 17.0 kw

Breakfast -Noon -Night -

12 minutes per cycle x 2 cycles = 24 minutes 17 minutes per cycle x 2 cycles = 34 minutes 17 minutes per cycle x 2 cycles = 34 minutes

92 minutes ( or 1 hour 32 minutes 1.53 hr.)

At 100 % power usage 1.53 hrs. x 17 kw = 26.01 kwh x $0.06 = $1.56 per 3 meals 1.56 ~ 120 trays = $.013 per tray

Summary:

RTM-2 = 20 Trays per cycle (10 trays per cavity) 2 cycles per mealtime = 6 cycles per day Total heating time = 92 minutes or 1.53 hours

*At 100% electrical draw = 17.0 kw/hr. 17.0 kw x 1.53 hr. = 26.01 kwh x $.06 = $1.56 per day 1.56 ~ 120 trays - $.013 per tray or $.039 per patient per day

*At 55% electrical draw = 17.0 kw x 0.55 = 9.35 kw 9.35 x 1.53 hrs. = 14.31 kwh x $.06 = $0.86 per day $0.86 ~ 120 trays = $.007 per tray or $0.02 per patient per day

*The RTM will cycle after the thermostat setting is reached so full power is drawn only 55% of the time the RTM is in use.

10

CATR RTM ENERGY REQUIREMENT

BULK FOOD APPLICATION

5 pans (12" x 20" x 2-1/2") per cavity - 2 cavities per RTM-2. Each cavity = 8.5 kw x 2 cavities = 17.0 kw

Breakfast -Noon -Night -

20 minutes per cycle x 2 cycles = 40 minutes 25 minutes per cycle x 2 cycles = 50 minutes 25 minutes per cycle x 2 cycles = 50 minutes

140 minutes = 2.33 hrs.

*At 100% power usage:

17.0 kw x 2.33 = 39.61 kwh x $.06 = $2.38 per 3 meals per day $2.38 -:- 60 pans = $.04 per pan

Summary: 10 cans per cycle (5 pans per cavity) 2 cycles per mealtime = 6 cycles per day

. Total heating time = 140 minutes = 2.33 hours

*At 100% eh?ctrical draw = 17.0 kw/hour 17.0 kw x 2.33 hour = 39.61 kwh 39.61 kwh x $.06/kwh = $2.38 per RTM per day; $.04 per pan.

*At 55% electrical draw: 17.0 kw x 0.55 = 9.35 kw 9.35 x 2.33 hours = 21.786 kwh x .06 = 1.31 day; $.02 per pan

*The RTM will cycle after thermostat setting is reached so that full power is drawn only 55% of the time the RTM is in use.

11

INSTALLA TIONINSTRUCTIONS

The installation instructions which follow are for the use of qualified installation and service personnel only. Installation by other than qualified personnel may result in damage to the oven and/or injury to the operator.

Qualified installation personnel are firms or individuals who are engaged in and are responsible for the installation of electrical wiring from the electric meter, main fuse panel, or service outlet to the electric appliance.

Qualified personnel must be experienced in such work, familiar with all required precautions, and have complied with all requirements of state or local authorities having jurisdiction.

When installed, the RTM must be connected and electrically grounded in accordance with local codes, or in the absence of local codes, with the National Electrical Code, ANSI/NFPA No. 70-1984 or the Canadian Electrical Code C22.1-1986.

Wiring diagrams are located within the rear access panel and included in this manual. See pages 18 and 19.

Location of the RTM Modules: The well planned and proper placement of the RTM will result in long term operator convenience and satisfactory performance. It is therefore urged that adequate thought be given to the location of the RTM prior to delivery for installation.

Locate the RTM in an area which is accessible for proper operation and servicing, allowing a minimum of 6" between the rear of the RTM and the wall, for ventilation.

It is essential that ventilation not be obstructed in any way. If not corrected immediately, insufficient ventilation can result in erratic operation and the solid state control, tripping of the blower motor thermal overload, or severe damage to the RTM components.

Electrical Connections: . RTM modules are supplied for operation on nominal 208 volt or 230' volt installations. All electrical components are interwired to a common power source.

Before making any connection to the RTM, check the rear mounted nameplate to assure that the voltage, phase, and k.w. rating is compatible with the electrical supply.

Power for the RTM is supplied through an attached cord set in the rear of each module, NEMA configurations for the proper matching receptacles are shown under "Electrical Specifications" in this manual.

12

REMOVAL AND REPLACEMENT OF PARTS

Digital Control Panel: • Remove one screw at bottom. • Pull out at bottom and down to disengage (2) retainer pins at top. • Disconnect (2) electrical plugs from rear of solid state control panel.

• To replace, reverse the above procedure.

Rear Access Panel: • Remove (4) phillips head screws. • Tilt out and remove .

•. To replace, reverse the above procedure.

Stainless Steel Door Gasket Replacement: • Open door. • Remove all gasket screws. • Remove gaskets. • Replace top and bottom metal gaskets on perimeter of RTM cavity. • Replace side g;Iskets and screws.

Door Removal and Replacement: • Remove the lower of two hex head bolts which retain the top hinge pin

of the door. • Loosen, but do not remove, the upper hex head bolt in the same hinge

pin. • Slide the hinge pin down into the door by moving the loosened bolt

down in the slot. • Tip the door out at the top, and lift up to remove bottom pin from

bushing.

• To replace, reverse the above procedure using care to insure that the number of spacer washers placed under the door is the same as the number removed.

Silicon Rubber Door Gasket Replacement: • Remove door. • Lay outside of door on padded surface to prevent scratching or denting

of polished exterior surface. • Lift interior flap of gasket to expose rivets and drive center pin of rivet

down with a 1/8" diameter punch. • Drill out rivets with a 3/16" diameter drill. • Install new gasket, using 3/16" counter sunk style blind rivets. • Seal interior flap of new gasket using G.E. #732 clear silicon RTV.

13

Blower Wheel Assembly - Removal and Replacement: • Remove racks or cassettes. • Remove diffuser panel by lifting up to disengage shoulder rivets and tilt

out at top. • Loosen (2) Allen head set screws in blower wheel hub. • Use a gear puller to remove the blower wheel from motor shaft.

• To replace, lubricate the motor shaft with graphite, position the wheel for proper clearances between wheel and diffuser, then tighten set screws securely.

Motor Removal and Replacement: • Remove blower wheel assembly • Remove rear access panel • Disconnect motor wiring at the terminals on the blower motor contactor. • Remove (4) hex head motor mounting bolts and remove motor. • Disconnect motor wiring from motor terminals.

• To replace, reverse the above procedure.

Heating Element Replacement: • Remove rear access panel. • Remove element terminal cover (two hex head screws) • Disconnect wiring from defective element. • Remove racks or cassette from RTM cavity. • Remove diffuser panel. • Remove screws from element mounting brackets and remove defective

element.

• To replace, reverse the above procedure. Refer to the wiring diagram to insure proper connections for wiring.

Thennostat Sensor Replacement: • Remove rear access panel. • Remove racks or cassette from RTM cavity. • Remove diffuser panel. • For replacement of computer control sensor, also remove the digital

control panel. • Disassemble defective sensor from sensor bracket within cavity. • Pull sensor thru rear wall of RTM cavity into the rear wiring

compartment and disconnect leads from thermostat or digital control.

• To replace, reverse the above procedure, using care in routing the sensor leads to the thermostat or digital control.

14

PLEASE NOTE POLARITY OF MANUAL SENSOR LEADS: RED IS ALWAYS CONNECTED TO NEGATIVE (-).

Manual Thermostat Replacement: • Remove the rear access panel. • Remove (8) retaining screws from flanges of thermostat panel. • Tilt thermostat panel out to gain access to wiring and disconnect sensor

leads and electrical connections from defective thermostat. • Remove thermostat knob and (2) screws which mount thermostat to

panel.

• Reverse the above procedure to replace. Refer to the wiring diagram to insure correct connections for wiring.

Selector Switch Removal and Replacement: • Remove the rear access panel. • Remove (8) retaining screws from flanges of thermostat panel. • Tilt thermostat panel out to gain access to wiring and disconnect wiring

from defective switch. • Remove the retaining nut from the on/off switch to remove defective

switch from the panel.

• Reverse the above procedure to replace. Refer to the wiring diagram to insure correct connections for wiring.

Door Switch Removal and Replacement: • Remove the digital control panel. • Remove (2) 6-32 x 1" screws which mount the door switch to the

partition. • Disconnect wiring from the defective switch.

• Reverse the above procedure to replace. Refer to the wiring diagram to insure correct connections for wiring.

Adjust the switch as noted in the maintenance instructions under "Door Switch Adjustment." .J>

Removal and Replacement of Electrical Components Located in Rear: • Remove the rear access panel. • The heater contactor, fan contactor, control transformer, fan control

relay, heat control relay, and (2) terminal blocks are located on a sub panel.

• Locate defective part and remove wiring. • Remove mounting screws holding defective component.

15

• To replace, reverse the above procedure. Refer to the wiring diagram to insure correct connections for wiring.

Master Switch and/or Indicator Light Replacement: • Remove the digital control panel.

Depress spring clips which retain the master switch and the indicator lights and pull the switch and lights out through the openings in the switch panel.

• Transfer wiring from the defective component to the new component.

Refer to the wiring diagram to insure correct connections for wiring. • Insert the master switch and indicator lights into the switch panel until

the retaining clips are seated. • Install digital panel.

16

SEQUENCE OF OPERATION

Digital Time and Temperature Control: • The rear mounted selector switch is set in the computer position. • Place cassettes, door racks, or pan guides into cavity. Load the foods

which are to be rethermalized as noted in the "Directions for Use" in this manual.

• Turn the master switch "ON". Master switch indicator light will be "ON" to indicate power is on. Green pilot light will be "ON" to indicate selector switch is set in "Computer Controlled" position. Digital readout will indicate "0".

• Select and press the program/cycle button which has been programmed for the time and temperature required for the food load which is to be rethermalized.

A program/cycle pilot light will indicate the program/cycle which has been selected.

The digital readout will indicate the temperature of the cavity.

Blower and heating will commence operation. (Blower and he2ting will not start unless RTM door is fully closed.)

When the cavity temperature has achieved 75% of the programmed temperature of the chosen program/cycle, the digital readout will indicate the programmed time of the chosen program/cycle and begin to countdown to "0".

For display of cavity temperature during the rethermalization cycle, push the "TEMP" button.

• When the rethermalizing time has elapsed, the digital control will provide the following indications:

The heaters and blower will shut off. The digital readout will indicate "0". The program/cycle indicator light will flash. A beeper will signal the end of the cycle.

These indications will continue until the previously chosen program/cycle button is pressed or the master switch is turned off.

17

PROGRAMMING THE COMPUTER

• Turn the master switch "ON".

The switch indicator light will be "ON". The green indicator light will be "ON" to indicate computer mode. The digital readout will indicate "0".

• To enter the program mode, push the "SET" button (3) times and the "TEMP" button (2) times. The digital readout "999" will indicate the program mode.

• To program a cycle, press the cycle button which is to be set (1) one time.

The LED indicator for that channel will be lighted. The digital readout will indicate the presently set retherm time for the selected channel.

To change the displayed retherm time, press the "SET" button to increase the time and the "TEMP" button to decrease the time.

• To proceed with programming, press the selected channel button a second time.

The LED indicator for that channel will remain lighted. The digital readout will indicate the presently set retherm temperature for the selected channel.

To change the displayed retherm temperature, press the "SET" button to increase the temperature and the "TEMP" button to decrease the temperature.

• To return to normal operation, press the selected cycle button a third time. The digital readout will indicate "999."

All of the LED indicators will be unlighted. The computer control will automatically return to the "OPERAT~" mode in approximately 15 seconds.· ..

The digital readout will indicate "0" signaling the change has been locked into the computer and Master Switch can be turned OFF, if desired.

ADDITIONAL INFORMATION

• An open sensor is indicated by "0" scrolling across the screen.

• A shorted sensor is indicated by "5" scrolling across the screen.

18

MANUALLY TIMED OPERATION:

Manually timed operation serves as a back-up to allow continued emergency use of the RTM after failure of the digital time and temperature control.

Switching from digital to manually timed control is accomplished by moving the rear mounted selector switch from "COMPUTER" to "MANUAL".

To set the manual thermostat, the rear mounted thermostat dial is set at 350 0 F for rethermalizing bulk foods and 300 0 F for rethermalization of portioned meals.

Door racks, cassettes, or pan guide assemblies are loaded with bulk or portioned food as in "Digital Time and Temperature Control".

After the RTM door is closed, the rethermalizing times are manually controlled, using the master switch to start and stop the cycle and a clock or a separate timer to provide the proper cycle time.

Manual operation of the RTM will be indicated by the lighted red pilot light adjacent to the master switch. (All indicators and the digits of the digital control will be inoperative.)

19

USECO RETHERMALIZING UNIT ..... SIDE LOADING - MODELS RTM, RTM-C

OPERATING INSTRUCTIONS

STEP: ACTION:

1 Open Retherm unit door. Place food inside.

Use door rack for portioned foods. Use cavity rack for bulk panned foods (or pan ledges).

2 Close door and turn Master Switch "ON".

3 Select proper cycle key:

AM (Breakfast) key or PM (Noon/Night) key for portions.

AM (Breakfast) key or PM (Noon/Night) key for bulk pans.

4 When beeper sounds at end of cycle, press cycle key to silence beeper.

5 Remove food. For second cycle, repeat steps 1 through 4.

At completion, turn Master Switch "OFF".

20

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R' N IN o < o r :-1 IN B.

o ~ C)

z o

Ul o ~

o -f::>. -f::>. to G) o ---I.

~

OR REO - J SEt,SOR

LEADS

PILOT LIGHT

OR

~-----------l :R T BLOCK

BLU t--BLU~ BLK--------~

BLU------, Y BLK t· OR ~- u -? ? ~

OR 1}------1>--- .OR

~ BLU --+----+--..:---;

T BLOCK

TRANSFORMER I I ~ SEE HOrr 'F' ~ ~ I ~ .~

CONTROL ~ --.-J. I 1.1 . PANEL _._--' --,----

COOLING FAN

'---------- \'11-1 ----------<

Wrl

RED --------------~

~ oc ~ t!l (lJ

OR

BLK -----____________________________________ _

NOTES

"A" NUMBERED 'MRES (ORANGE COLOR) -- 18 AWG COPPER, TYPE TFFN, RATED 90'C, 600V ..

"B" 'MRING - COLOR ONLY NOTED (RED, BLACK, WHITE, & -BLUE) 18 AWG COPPER, TYPE TFFN, RATED 90'C, 600V.

"C· 16 GA. COLOR & GA. NOTED -- 16. AWG COPPER, TYPE TFFt~, RATED 90'C, 600V. _ .' .

"0" HIGH TEMPERATURE 'MRES"-- 14 AWG NICKEL PLATED COPPER, 41/30 STRANDING, RADIX STYLE No. 5127, TYPE TGGT, 1/32" MIN. INSULA 1l0N RATED 2S0'C, 600V

"0" ALTERNATE -- 14 AWG NICKEL PLATED COPPER, 41/30 STRANDING, RADIX STYLE No. 5127, TYPE TGGT, 1/32" MIN INSULA 1l01~ RATED 2S0'C, 600V.

"E" YELLOW 1 B AWG 'MRING -- 12 VOLT (CLASS 2 CIRCUIT) "F" CLASS 2 TRANSFORMER PRIMARY CONNECllONS:

208V SUPPLY - USE COMMON & 208V 230V SUPPLY - USE COMMON & 240V

~ en ~ t!l

(lJ ~

GLOWER

16 GA. RED OR }.I0TOR·

16 GA. BLK @

L1 L2 L:.l

3PNO HEAT CONTACTOR

-==I=I~I CORD SF.T 1=== CONI4EC~ON L------- GR ----::L

NOTE- HIGH TEMP!:RATURE Yv1RES LABELED @@@@@@@@ & @- 14 AWG

RA TED ?50 C, 600 Vol ts

RED - LlI~E 1 & BLOWER BLACK - LINE 2 & BLOWER BLUE - COI'iTROLLED BY DOOR S'Y'iHCH YEL - CLASS 2 CIRCUIT WHITE --- SVIITCHED Llt4E 2 ORAt~GE - CONTROLLED BY SELECTOR S'MTCH

HEATING

ELEMENTS

s: o o fTl \.

:::u ~ N o (Xl

R' N IN o

< o I ~ -->.

'0.

o :f G)

z o

OJ o --l.

o .j:::.. .j:::.. ill G") o N

OR

PILOT

rrRED-- J SENSOR

UGHT /"'.. I LEADS

- + OR

WI-I

OR

BLU ------------------------t----BLU~

BLK ------------,

BLU------, .---------~t___ OR ~ 1....4 BLK t Y -y -yl

,.---1'-1~ BLU ~f'---1'--'---i

T BLOCK

~~~~~M"~~, ~ ~ ~ ~

C~~~~l ~ ~II I COOLING 'FAN,

'---'-------\lM-----------j

I'iH

BLK

NOTES

"A" NUMBERED 'MRES (ORANGE COlOR) -- 1 B AWG COPPER, Tl'PE TFFN, RATED 90'C, 6DGY.

RED " I

"S" 'MRING - COlOR ONLY NOTED (RED, BLACK, I'r1-lITE, '" ,BLUE) 16 AWG COPPER, Tl'PETF.fN, RATED 90'C, BODY,

"C" 16 GA. COlOR &. GA. NOTED -- 16 AWG COPPER, TYPE 1FFN, RATED 90'C, SOOY. , , ", " '

"D" HIGH TE~lPERATVRE 'MRES -- 14 AWG NICKEL PLATED COPPER, 41/30 STRANDING, RADIX STYLE No. 5127, TYPE TGGT, 1/32" MIN. INSULA TlON RATED 250'0, SOOY

"D" ALTERNATE -- 14 AWG NICKEL PLATED COPPER, 41/30 STRANDING, RADIX STYLE No, 5127, TYPE TGGT, 1/32" MIN INSULATlOH RATED 250'0, BOOY.

wE" YELLOW 18 AWG Y,'RING -- 12 VOlT (CLASS 2 9/RCUIT) wr CLASS 2 TRANSFORMER PRIMARY CONNECTIONS:

20BY SUPPLY - USE COMMON &. 208V 2JOY SUPPLY - USE COMMON '" 240Y

DR

OR BLOWER

16 GA. RED OR ~IOTOR 16 GA, BLK @

11

B ~ ~ CO

..(

~I LJ:fb' If C!l

UMITlNG In nHERMOSTAT J J ~

GA. BlK

L1 l?

CORD SET r=----J r CONNF.CTlON l: GR

NOTE- HIGH TEMPERA TVRE 'MP,ES LABElEO @@@)@@@@@ &@- 14 ,AWG

RA TED 250'C, 600Y

RED - UNE 1 '" BLOWER BLACK •• LINE 2 &. BLOWER

BLUE - CONTIROLLED BY DOOR SII1TCH YEL •• CLASS 2 CIRCUIT

I'r1-lITE - SII1TCHEO UNE 2

ORANGE - CONTROLLED BY SELECTOR SII1TCH

3PNO HEAT CONTACTOR

:=L

HEATlNG

ELEMENTS

KEY

2 3 4

5 6

7 8

9 10 1 1 12 13 14

15 16

17 18 19

20

21

22 23

24 25 26

PiN

102A597P04 101A533P04 300B025P4l 302B3llPOl 302B3llP02 50lC432P01 302B346G01 103Al13P01 103A066P01 103A069P01 103A068P01 100A3l9P02 102A6l6P21 101A50lP03 102A932P03 102A932P01 100A078P18 102A963P01 102A963P02 101A501P15 10QA096P01 100A095P01 10lA657P15 10lA657Pl3 101A316P08 101A485P06 101A6S7P16 103A067P01 103A065GOI 101A578P01 100A090POS SOlC438POl 302B'34 TG01 102A682P04 101ASOlP02 100A880P02 100A082P02 100A082P03 302B344GOI 50lC320P02 SOlC32lPOl l02A845P01 302B345P01 302B345P02 302B34SP03

RTM PARTS LIST

DESCRIPTION

Blower Motor Blower Wheel Heating Element Heating Element Spacer Heating Element Clamp Diffuser Panel Door Assembly Do o"r Han dIe Door Latch Hinge Pin, Door Two Hole Washer, Hinge Pin Spacer, Door Hinge Pivot Bushing, Door Hinge Lighted Power Switch Pilot Light -Computer Pilot Light - Manual Thermostat, Manual Thermocouple, Manual Thermostat Sensor, Digital Thermostat Selector~'Switch

Fuse Holder Fuse, 15 Amp.

. C o.n t act 0 r; , He a t ReI a y, B 1.0 we r Transformer, Control Circuits Terminal Block Relay, Heat & Fan Control Harness, Digital Control Panel Cooling Fan Assembly Cooling Fan Motor Cooling Fan Blade Control Panel, Manual Control Panel Assembly (Digital) Digital Panel (Solid State) Door Switch Return Spring, Door Switch Thermostat, Preset, Heat Limiting (444-1414) Thermostat, Preset, Heat Regulating (444-1413 Pan Guide Assembly Door Rack Cassette Gasket, Silicon Rubber Gasket, Vertical (Stainless Steel) Gasket, Top (Stainless Steel) Gasket, Bottom (Stainless Steel)

" ~~ :\ 6 ~\~~

CD

00 000 00

a

I -----:::-~~SI DEE LOA DIN G) I-- MODELl RTM (SID

\

.. '. 5'01C/4 ,4~8_GO.l .. D'w'G. NO_.1 ___ _

RTM

PART NUMBER DESCRIPTION

lO2A597P04 Blower Motor

lOlA533P04 Blower Wheel

300B025P41 Heating Element

302B311POl Heating Element Spacer

302B311P02 Heating Element Clamp

501C432POl Diffuser Panel

302B346GOl Door Assembly

lO3Al13POl Door Handle

lO3A066POl Door Latch'

302B352POl Door Strike -

lO3A069POl Hinge Pin (Door)

lO3A068POl Two Hole Washer (Hinge Pin)

lOOA319P02 Spacer (Door Hinge)

lO2A616P21 Pivot Bushing (Door Hinge)

lOlA501P03 Switch - Red Indicator

lO2A932P03 Pilot Light (Computer)

lO2A932POl Pilot Light (Manual)

lOOA078P27 Thermostat (Manual)

lO2A963POl Thermocouple (Manual T-Stat)

lO2A963P02 Sensor (Digital T-Stat)

lOlA501P15 Selector Switch

lOOA096POl Fuse Holder

lOOA095POl Fuse (15amp)

lOlA657P15 Heat Contactor

lOlA657P13 Blower Relay

lOlA316P08 Transformer (Control Circuits)

lOlA485P06 Terminal Block

lOlA657P21 Relay (Heat & Fan Control)

lO3A067POl Harness (Digital Control Panel)

01/06 6

PART NUMBER

103A065G01

101A578P01

100A090P05

501C438P01

302B351G01

302B347P03

101A501P02

100A880P02

100A082P02

501C478G01

302B021G01

302B344G01

302B361P01

102A964P02

100A049P06

302B345P01

302B345P02

302B345P03

302B345P04

01/06

RTM

DESCRIPTION

Cooling Fan Assembly

Cooling Fan Motor

Cooling Fan Blade

Control Panel (Manual)

Control Panel Assembly (Digital)

Instruction Label (RTM)

Door Switch

Return Spring (Door Switch)

Thermostat (Heat Limiting)

Door Rack (See Figure 1)

Bulk Pan Cassette Rack Assembly (See Figure 2)

Pan & Shelf Guide Assembly (See Figure 3)

Wire Shelf- 14 1/2" x 21 (See Figure 4)

Door Gasket

3/16" Rivet

Gasket - Top (Stainless Steel)

Gasket - Hinge Side (Stainless Steel)

Gasket - Latch Side (Stainless Steel)

Gasket - Bottom (Stainless Steel)

7

RUN DATE: 21-APR-2011 07:11 A.M. UNITED SERVICE EQUIPMENT CO

KIT R E QUI REM E N T LIS TIN G

ASSEMBLY ITM ISSUE ITEM NO. DES C RIP T ION LOT QTY DATE 501C457G01 RTM-1 RETHERM UNIT 208V/3PH

U/M WK ORD # EA H 1 04/21/2011 04

LINE NO

1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

I T E M C NUMBER L

100A078P27 6 100A082P02 6 100A082P03 6 100A090P05 6 100A096P04 6 100A880P02 6 101A316P08 6 101A474P14 6 101A485P06 6 101A501P02 6 101A501P03 6 101A501P15 6 101A533P04 6 101A578P01 6 101A589P09 6 101A657P13 6 101A657P15 6 101A657P21 6 102A597P04 6 102A616P21 6 102A682P04 6 102A845P01 6 102A932P01 6 102A932P03 6 102A963P02 6 103A066P01 6 103A067P01 6 103A110P01 6 103A110P02 6 103A110P03 6 103A110P04 6 103A110P05 6 103A110P06 6 103A110P07 6 103A110P08 6 103A110P09 6 103A110P10 6 103A110P11 6 103A110P12 6 103A110P13 6 103A110P14 6 103A110P15 6 103A110P16 6 103A110P17 6 103A110P18 6 103A110P21 6 103A110P22 6 103A110P23 6

DES C RIP T ION THERMOSTAT:HEATING,SNAP ACTING THERMOSTAT-LIMITING - PRESET THERMOSTAT-REGULATING-PRESET -FAN BLADE: 5" DIA,4 BLADE,CCW, FUSE HOLDER (QUICK-CONNECT) -SPRING, DOOR SWITCH TRANSFORMER,208/240VAC,50/60HZ CORD CAP:STR BLADE, 30A/250V TERML BLOCK 5 PRONG SPADE TYPE SNAP ACTING SPDT,25AMP1HP/ SWITCH-INDICATOR (RED/HOT) TOGGLE SWITCH - lOA, 250VAC BLOWER WHEEL 2" W/SETSCREW FAN MOTOR - BALL BEARING TYPE STRAIN RELIEF BUSHING:.625 TO RELAY, SPDT NORMALLY OPEN MERCURY RELAY: 35A, 250V RELAY, MIDGET DPDT W/EARS, BLOWER MOTOR FOR RTM FLANGED HINGE PIVOT BEARING, TIME & TEMP PC CONTROL BOARD SILICONE RUBBER GASKET - GRAY RED INDICATOR LIGHT GREEN INDICATOR LIGHT SENSORS 45" DIGITAL THERMOSTAT DOOR LATCH WIRING HARNESS WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY

STK CTL S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C

UNIT QUANTITY

1. 0000 1.0000 1.0000 1.0000 2.0000 1.0000 1.0000 1.0000 2.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 2.0000 1.0000 2.0000 1.0000

92.5000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

TOTAL QUANTITY

1. 00 1. 00 1. 00 1. 00 2.00 1. 00 1. 00 1. 00 2.00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 2.00 1. 00 2.00 1. 00 7.71 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00 1. 00

I U E E E E E E E E E E E E E E E E E E E E E F E E E E E E E E E E E E E E E E E E E E E E E E E E

RUN DATE: 21-APR-2011 07:11 A.M. UNITED SERVICE EQUIPMENT CO

KIT R E QUI REMENT L I S T I N G

50 103A110P25 6 WIRE ASSEMBLY S C 2.0000 2.00 E 51 103A110P26 6 WIRE ASSEMBLY S C 2.0000 2.00 E 52 103A110P31 6 WIRE ASSEMBLY S C 6.0000 6.00 E 53 103A110P33 6 WIRE ASSEMBLY S C 1.0000 1. 00 E 54 103A110P34 6 WIRE ASSEMBLY S C 1.0000 1. 00 E 55 103A110P35 6 WIRE ASSEMBLY S C 1.0000 1. 00 E 56 300B025P41 6 HEATING ELEMENT: 208 VOLT, S C 3.0000 3.00 E 57 302B347P01 6 NAMEPLATE (RTM TST PANEL) S C 1.0000 1. 00 E 58 302B347P03 6 INSTRUCTION PANEL FOR RTM S C 1.0000 1. 00 E 59 302B439P02 6 CATR NAMEPLATE (SMALL) 2 COLOR S C 1.0000 1. 00 E

RUN DATE: 15-JUN-2011 09:14 A.M. UNITED SERVICE EQUIPMENT CO

KIT R E QUI REM E N T LIS TIN G

ASSEMBLY ITM ISSUE ITEM NO. DES C RIP T ION LOT QTY DATE 501C452G01 MODULE ONLY (RTM), 208V/3PH

U/M WK ORD # EA HILL 1 06/15/2011 06

LINE NO

1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

I T E M C NUMBER L

100A078P27 6 100A082P02 6 100A082P03 6 100A090P05 6 100A096P04 6 100A880P02 6 101A316P08 6 101A474P14 6 101A485P06 6 101A501P02 6 101A501P03 6 101A501P15 6 101A533P04 6 101A578P01 6 101A589P09 6 101A657P13 6 101A657P15 6 101A657P21 6 102A597P04 6 102A616P21 6 102A682P04 6 102A845P01 6 102A932P01 6 102A932P03 6 102A963P02 6 103A066P01 6 103A067P01 6 103A110P01 6 103A110P02 6 103A110P03 6 103A110P04 6 103A110P05 6 103A110P06 6 103A110P07 6 103A110P08 6 103A110P09 6 103A110P10 6 103A110P11 6 103A110P12 6 103A110P13 6 103A110P14 6 103A110P15 6 103A110P16 6 103A110P17 6 103A110P18 6 103A110P21 6 103A110P22 6 103A110P23 6

DES C RIP T ION THERMOSTAT: HEATING, SNAP ACTING THERMOSTAT-LIMITING - PRESET THERMOSTAT-REGULATING-PRESET -FAN BLADE: 5" DIA,4 BLADE,CCW, FUSE HOLDER (QUICK-CONNECT) -SPRING, DOOR SWITCH TRANSFORMER,208/240VAC,50/60HZ CORD CAP:STR BLADE, 30A/250V TERML BLOCK 5 PRONG SPADE TYPE SNAP ACTING SPDT,25AMP1HP/ SWITCH-INDICATOR (RED/HOT) TOGGLE SWITCH - lOA, 250VAC BLOWER WHEEL 2" W/SETSCREW FAN MOTOR - BALL BEARING TYPE STRAIN RELIEF BUSHING: .625 TO RELAY, SPDT NORMALLY OPEN MERCURY RELAY: 35A, 250V RELAY, MIDGET DPDT W/EARS, BLOWER MOTOR FOR RTM FLANGED HINGE PIVOT BEARING, TIME & TEMP PC CONTROL BOARD SILICONE RUBBER GASKET - GRAY RED INDICATOR LIGHT GREEN INDICATOR LIGHT SENSORS 45" DIGITAL THERMOSTAT DOOR LATCH WIRING HARNESS WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY WIRE ASSEMBLY

STK CTL S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C S C

UNIT QUANTITY

1.0000 1.0000 1.0000 1.0000 2.0000 1.0000 1.0000 1.0000 2.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 2.0000 1.0000 2.0000 1.0000

92.5000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

TOTAL QUANTITY

1. 00 1. 00 1. 00 1. 00 2.00 1.00 1.00 1.00 2.00 1.00 1.00 1.00 1. 00 1. 00 1.00 1.00 1.00 2.00 1.00 2.00 1.00 7.71 1. 00 1. 00 1. 00 1. 00 1.00 1.00 1.00 1.00 1. 00 1.00 1. 00 1. 00 1. 00 1. 00 1. 00 1.00 1.00 1.00 1.00 1. 00 1. 00 1. 00 1. 00 1.00 1. 00 1.00

I U E E E E E E E E E E E E E E E E E E E E E F E E E E E E E E E E E E E E E E E E E E E E E E E E