Defective timer contacts will result in failure of cooker
compartment to operate.
When this occurs, remove the side panel and proceed as
follows:
1. Turn off power to the cooker at external circuit breaker
2. Disconnect all ve wires from timer terminals.
3. Connect an ohmmeter between terminals 1 and 3.
4. Rotate timer dial beyond the “0 - Minute” point (any
setting) to obtain a reading of zero ohms on the ohmmeter. If zero ohm reading cannot be obtained, timer
contacts are defective and the timer must be replaced.
5. Move ohmmeter leads to terminals 1 and 4.
6. Rotate timer dial to “0 - Minute” position (an audible
click indicates correct position). If zero ohm reading
cannot be obtained, the timer is defective and must
be replaced.
7. Remove ohmmeter and replace all ve leads on timer
terminals.
Timer Motor
A defective timer motor will cause continuous operation in
the TIME mode, with the timer dial failing to return to the
“0 - Minute” position.
To conrm timer motor condition, proceed as follows:
1. Carefully check motor wire leads and tighten loose
connections
WARNING
Use care while working with control panel.
Terminals carry 120 Volts.
2. Turn on power to the steamer.
3. Set timer dial (any setting beyond “0 - Minute”). If operation is correct, the motor will turn the dial toward
“0 - Minute”. If the motor fails to operate, it is defective
and the entire timer must be replaced.
DOOR INTERLOCK SWITCH
Malfunction of the cooker door interlock switch prevents
indicator lights from turning on and steam generator from
operating when the timer dial is set. If steam does not
enter the compartment and the cooking indicator light fails
to turn on with the door latch securely engaged, the fault
may be in the door interlock switch. Proceed as follows:
1. Turn off power to the cooker.
2. Disconnect wires to the door switch terminals.
3. Connect an ohmmeter between the Common & N.O.
(Normally Open) terminals of the switch.
4. Actuate the switch by closing the cooking compartment door. If a zero reading cannot be obtained, the
switch is defective and must be replaced.
5. Remove the ohmmeter and replace the leads on
switch terminals.
INDICATOR LIGHTS
If the cooker compartment functions correctly, with the
single exception that the indicator light fails to light during
operation, the fault is a defective indicator light. A “burned
out” or defective light is veried by using an AC volt-meter
at the leads, with input power on the selector switch in the
correct position for that timer, the timer set, and the door
latches closed. If 120 volts is present, the fault is in the indicator light and requires replacement. If 120 volts is not
present, the fault is in the wiring or control components
(selector switch, timer or door switch).
BUZZER
If the buzzer does not sound at the termination of the
operator-selected timer setting (timer dial returned to “0
- Minute” position), the fault may be a defective buzzer.
Buzzer operation is veried using an AC volt-meter at
buzzer coil connections with input power on and selector switch and coinciding timer dial set at the “0 - Minute”
position. If voltage is 120 volts, the fault is in the buzzer,
which must be replaced. If 120 volts is not present, the
fault is in the wiring or control components (timer or selector switch).
4. Shut off power to the cooker.
WIRING
Using an ohmmeter, wiring continuity between the con-
nections shown on the wiring diagram is readily veried.
This is best done in stages, removing only those wires
required for each continuity check. As each lead is replaced, it should be checked for evidence of corrosion,
and cleaned if necessary. All leads must be tightly attached so as to provide a good electrical connection.
Page 7
ADJUSTMENTS
All units are adjusted at the factory. In case of operation problems at initial installation, check type of gas supply and manifold pressure and compare it with information on the rating plate.
PROBLEMPROBABLE CAUSEREMEDY
BURNERS DO NOT
COME ON
BURNERS PRODUCE CARBON
DEPOSITS
FLASH BACKa. Burning inside mixer tube.
WARNING
At least twice a year, have an authorized
service person clean and adjust the unit for
maximum performance.
WARNING
Adjustments and service work may be per-
formed only by a qualied technician who is
experienced in, and knowledgeable with the
operation of Commercial Gas Cooking Equip-
ment. However, to assure your condence,
contact your authorized service agency for
reliable service, dependable advice or other
assistance and for genuine factory parts.
a. Gas supply is off.
b. Power switch is off.
c. Probe not sensing water level.
d. Ignitor not functioning.
e. Combination gas valve not opening.
a. Incorrect orice size.
b. Incorrect gas supply.
c. Incorrect gas pressure.
b. Incomplete combustion.
c. Sooting of burner.
d. Mislocated ignitor.
a. Locate supply line and turn on.
b. Locate switch on control panel and turn on.
c. Clean probes, check wiring.
d. Check ignition module, relay.
e. Check that control knob is in the ON posi-
tion, check that 24 volts is at the gas valve.
a. Check size and correct.
b. Check size and correct.
c. Check gas pressure at manifold. Correct if
necessary.
a. Reduce primary air.
b. Increase burner input.
c. Increase primary air.
d. Adjust ignitor.
door panel assembly.
4. Remove the gasket plate and the door gasket from
door panel.
5. Install the new door gasket to the door panel. Replace the gasket plate and six screws.
6. Reassemble the door panel assembly in the door
frame using the four screws.
7. Gasket replacement is now complete.
Door may be difcult to close until gasket has compressed
to conform to opening. Leaving door closed overnight will
compress gasket.
EXTERIOR PANEL REMOVAL
CAUTION
Shut off main electrical power to unit.
DOOR GASKET REPLACEMENT
The cooking compartment door gaskets are made of a
silicone-type rubber material that is very durable but subject to wear during normal operation. Should the gasket
leak replace it.
1. Open the cooking compartment door.
2. Remove the four screws on the outside of the door
frame, and remove the door panel assembly.
3. Remove the six screws from the gasket plate in the
WARNING
To prevent hazard in servicing the cooker, be
certain that the steam supply boiler is shut
down, the cold water shut-off valve is closed,
and the electrical disconnect circuit breaker
for the Cooker/Boiler unit is OFF before removing side panels.
Access to all internal plumbing and electrical assemblies
is from the right side. The right-side panel is removed by
removing the bottom screws from panel. Gas controls are
located in the lower cabinet and are accessible from the
front of the unit.
Page 8
WIRING DIAGRAMS
Page 9
WIRING DIAGRAMS
Page 10
WIRING DIAGRAMS
Page 11
WIRING DIAGRAMS
Page 12
WIRING DIAGRAMS
ITEMPART NO.DESCRIPTION
1A 4-22TBTerminal Block22
1B 4-22ESTerminal Block End11
29124-2Switch, On/Off/Delime21
34874-1Thermostat, High Limit Safety21
** 4 4038-4 Level Control, 10K OHM21
5230-1Level Control, 1M OHM42
53738-9Probe, Low Level Cut-Off21
63738-8Probe, Low Level21
73738-7Probe, High Level21
84-PL04Ready Pilot, Green, 125V21
99126-1Thermostat, Operating21
109-3213Door Switch21
119-3174-1Relay, DPDT42
1208-6464Timer, 60 Min.21
133821-1Buzzer21
144-PL07Cooking Pilot, Red, 125V21
159-3383Transformer, 120-24V21
165162-1Fill Solenoid Valve32
173-S543Drain Valve32
189210-1Ignition Module21
195362-1Spark/Sensor Probe21
**20 9092-1Fuse, 1A, 250V, (220V)21
9092-2Fuse, 2A, 250V, (120V)21
219068-1Fuse Holder21
229-3175-1Relay, SPDT21
** 235450-1Gas Valve, Natural21
** 235450-2Gas Valve, Liquid Propane21
2408-6502Pressure Switch, Operating 21
259242-1Time Delay Relay, Operating21
2608-6588Hold Thermostat21
2708-5023Float Switch11
2808-6514Tank Thermostat, C130EF11
299224-1Time Delay Relay, Cooling11
304-PL04-2Ignition Pilot, Green, 24V21
3198-4206Power Supply, 120V - 5VDC11
329344-1Relay, DPDT, 120 VAC21
334-T265Transformer, 208-240/120V21
** SELECT AS REQUIRED.
QUANTITY
1 COMP2 COMP
Page 13
STEAMER EXPLODED VIEW
JUNE 12, 2015 13 ETP-5G & ETP-10G
Page 14
STEAMER EXPLODED VIEW
ITEMPART NO.DESCRIPTIONEPT-5GEPT-10G
197-6334Compartment Strainer12
297-6177Perforated Trough11
397-6175Pan Rack24
497-6174Hinge Rod1
497-6269Hinge Rod1
597-6191Door Switch12
97-6429Switch Actuator12
697-6178Striker12
797-6554Control Panel Decal1
797-6430Control Panel Decal1
897-6170Ready Pilot Light, Green, 125V12
997-5472Ignition Pilot Light, Green, 28V12
1097-6171Pilot Light, Red, 125V12
1108-3826Knob12
1297-6367Switch, On/Off/Delime12
1308-7521Temperature Indicator12
91-6491Grommet12
1497-6227Outer Door Shell12
1597-6432Door Handle Assembly12
1697-6232Latch Assembly12
1797-6236Spacer23
1897-6261Bushing48
1997-6230Door Panel12
2097-6228Door Gasket12
2197-6229Gasket Retaining Plate12
2297-6233Gasket Panel Screws816
2397-6481Hose Clamp, 5/8"1020
**2497-6434Hose, 5/8 I.D. x 30" Long, Upper Generator Drain1
97-6435Hose, 5/8 I.D. x 12" Long, Lower Generator Drain1
Hose, 5/8 I.D. x 14" Long, Lower Generator Drain1
2597-6436Brass Elbow, 5/8"C x 3/4" MPT12
2697-5946Blowdown Solenoid Valve12
2797-6209Connector, 5/8" C x 3/4" MPT12
2897-6555Right Side Panel1
2897-6437Right Side Panel1
* NOT SHOWN ** SELECT AS REQUIRED *** CONTACT FACTORY
JUNE 12, 2015 14 ETP-5G & ETP-10G
Page 15
STEAMER EXPLODED VIEW
ITEMPART NO.DESCRIPTIONEPT-5GEPT-10G
** 2997-6438Hose, 5/8" I.D. x 34" Long, Upper Cavity Drain1
97-6439Hose, 5/8" I.D. x 16" Long, Lower Cavity Drain1
3097-6440Brass Tee, 3/8"C1
3197-6188Brass Elbow, 3/8"C x 1/8" MPT23
3298-6123Brass Connector, 1/4 C x 1/8" MPT24
3397-6441Timer Delay Relay, Cooling - 120V11
97-6581Timer Delay Relay, Cooling - 240V11
3497-6186Fuse, 2A, 250V12
3597-5864Fuse Holder12
3610-6962End Section, Terminal Block11
3710-6963Terminal Block22
3897-5441Ground Lug11
3997-6282Solenoid Valve23
4097-5991Relay, DPDT, 120V24
4197-6344Connector, 3/8 C x 1/8" MPT11
4297-6442Bulkhead Union, 3/8"C22
4397-6443Hose Clamp, 1-1/16 - 2"24
4497-6444Drain Hose, 1-1/4" x 1-3/4" Long22
4597-6445Drain Tube Assembly12
4697-5702Cord Set, 120V11
4797-6418Generator Tank, Lower1
4897-6419High Limit Thermostat12
**4997-5948Liquid Level Control, 10K OHM12
Liquid Level Control, 1M OHM (Optional)14
5097-5701Transformer, 120-24V12
5197-5048Standby Thermostat12
5297-5572Ignition Module12
5397-5992Relay SPDT, 120V12
5497-6190Buzzer12
5597-6420Brass Street Elbow, 3/8" FPT x 1/4" MPT24
5697-6421Brass Hose Barb, 5/8" x 3/8" MPT24
5797-6422Brass Hose Barb, 5/8" x 1/2" MPT12
5897-6423Steam Diverter Hose, 5/8 I.D. x O.D. x 11-1/4" LG.24
5908-6464Timer, 60 Minutes, 120V12
**6097-6424Upper Delime Hose, 5/8" I.D. x 22" Long11
* NOT SHOWN ** SELECT AS REQUIRED *** CONTACT FACTORY
JUNE 12, 2015 15 ETP-5G & ETP-10G
Page 16
STEAMER EXPLODED VIEW
ITEMPART NO.DESCRIPTIONEPT-5GEPT-10G
97-6425Lower Delime Hose, 5/8" I.D. x 37" Long1
6197-6426Brass Hose Barb, 5/8" x 3/4" MPT12
6297-6203Brass Tee, 3/4"12
6397-6204Brass Close Nipple, 3/4"12
6497-6202Brass Elbow, 3/4"12
6597-6368Relief Valve Extension12
6697-6427Top Panel1
6697-6560Top Panel1
6797-6428Brass Nipple, 3/4" x 5-1/2"12
6897-6219Relief Valve, 5 PSI12
6991-7594Reducing Elbow Assembly12
91-7765Clean Port Plug12
6908-7511“O” Ring12
7097-6372Probe - High Level12
7197-6213Probe - Low Level12
7297-6212Probe - Low Level Cut Off12
7308-6502Pressure Switch12
7497-6559Generator Tank, Top11
7597-6446Tubing, Pressure Switch, 1/4" I.D. x 8" Long12
7697-6447Brass Hose Barb, 1/4" x 1/8 MPT24
7797-6448Pressure Switch Bracket12
7808-5015Vacuum Breaker12
7997-6449Tubing, Vacuum Break, 1/4" I.D. x 2" Long12