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Statement of Responsibilities
This document is for use by experienced and trained Qualified Cleveland Range, LLC Authorized Service
Representatives who are familiar with both the safety procedures, and equipment they service.
Cleveland Range, LLC assumes no liability for any death, injury, equipment damage, or property damage
resulting from use of, improper use of, or failure to use the information contained in this document.
Cleveland Range, LLC has made every effort to provide accurate information in this document, but
cannot guarantee that this document does not contain unintentional errors and omissions.
The information in this document may be subject to technical and technological changes, revisions, or
updates.
Cleveland Range, LLC assumes no liability or responsibility regarding errata, changes, revisions, or
updates.
Qualified Cleveland Range, LLC Authorized Service Representatives are obligated to follow industry
standard safety procedures, including, but not limited to, OSHA regulations, and disconnect / lock out /
tag out procedures for all utilities including steam, and disconnect / lock out / tag out procedures for gas,
electric, and steam powered equipment and / or appliances
All utilities (gas, electric, water and steam) should be turned OFF to the equipment and locked out of
operation according to OSHA approved practices during any servicing of Cleveland Ran ge equipment
Qualified Cleveland Range, LLC Authorized Service Representatives are obligated to maintain up-to-date
knowledge, skills, materials and equipment.
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Cleveland Range, LLC
1333 East 179th St., Cleveland, Ohio, U.S.A. 44110
Ph: 1-216-481-4900 Fx: 1-216-481-3782 Visit our Web Site at www.clevelandrange.com
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CLEVELAND RANGE
SEQUENCE OF OPERATIONS
Electric Boiler Base
1. Supply voltage is sent to the primary of the Control Transformer.
x 115 VAC is sent from the secondary of the Control Transformer to the on/off rocker
switch.
2. To turn the unit on, depress the red on/off rocker switch.
x 115 VAC is sent to the upper cabinets and terminal block in control box.
x 115 VAC is sent to normally open drain valve closing it.
x 115 VAC is sent to L1 and L2 of the water level board.
3. With the water level board energized and no water in the boiler
x 115 VAC is sent from the WF terminal to the fill solenoid.
x The fill solenoid opens and the boiler fills through the drain valve.
x The water fills to the low probe shorting it to ground
x 115 VAC is sent from the HTR terminal through the normally closed contacts of the
highlimit pressure switch to contacts of the ice cube relay and the amber reset switch,
energizing the amber light.
4. When the momentary amber switch is depressed 115 VAC is sent to the coil of the ice cube
relay closing it.
x The relay latches itself through a jumper to the coil.
x If either the high-pressure switch or the low water cut of switch opens, the latch
circuit opens.
x When the contacts close the amber light will energize and the process may begin
again.
x The relay contacts close sending 115 VAC through the normally closed contacts of the
operating pressure switch to the coil of the contactor(s). .
5. With 115 VAC to the coil of the contactor(s).
x The contactor closes.
x Supply power is sent to the elements.
6. The water in the boiler is heated to steam.
x As steam is generated and pressure builds the air is pushed out through the steamtrap.
x When steam goes through the steam trap and heats it to 192 degrees it closes.
7. Pressure builds in the boiler to the set point of 8-10 PSI (except 36CEM16 or pressure
steamers that are set at 5PSI).
x The operating pressure switch opens and the heat circuit is de-energized.
x When the pressure drops below the set point the heat circuit is energized and the heat
process begins again.
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8. Water continues to fill until the high probe is grounded.
x When the high probe is grounded the WF terminal on the water level board is de-
energized.
x The fill solenoid closes until the high probe is ungrounded for 05 seconds.
x If the water level drops below the low probe for more than 20 seconds the WF terminal
is energized and the water fill circuit begins again.
9. When the unit is turned off, by depressing the red rocker switch,
x 115 VAC is removed from the heat circuit.
x 115 VAC is removed from the drain circuit and the normally open drain valve opens
allowing the unit to drain.
x 115 VAC is sent to the 3-minute timer.
x The three-minute timer will energize the fill solenoid for 3 minutes while the steamer
drains.
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CLEVELAND RANGE
SEQUENCE OF OPERATIONS
Electric Boiler Base
With Secondary Low Water Cut Off Switch
1. Supply voltage is sent to the primary of the Control Transformer.
x 115 VAC is sent from the secondary of the Control Transformer to the on/off rocker
switch.
2. To turn the unit on, depress the red on/off rocker switch.
x 115 VAC is sent to the upper cabinets and terminal block in control box.
x 115 VAC is sent to normally open drain valve closing it.
x 115 VAC is sent to L1 and L2 of the water level board.
x 115 VAC is sent to the open contacts of the low water cut-off switch.
3. With the water level board energized and no water in the boiler
x 115 VAC is sent from the WF terminal to the fill solenoid.
x The fill solenoid opens and the boiler fills through the drain valve.
x The water fills to the low probe shorting it to ground
x 115 VAC is sent from the HTR terminal through the normally closed contacts of the
operating pressure switch to coil of the contactor(s).
x The rising water also raises the float on the low water cut-off switch closing it.
x 115 VAC is sent through the normally closed contact of the high-pressure switch to the
amber reset switch, energizing the amber light.
4. When the momentary amber switch is depressed 115 VAC is sent to the ice cube relay
closing it.
x The relay latches itself through a jumper to the coil.
x If either the high-pressure switch or the low water cut of switch opens, the latch
circuit opens.
x When the contact close the amber light will energize and the process may begin
again.
x The relay contacts close sending 115 VAC to the coil of the contactor.
5. With 115 VAC to the coil of the contactor(s).
x The contactor closes.
x Supply voltage is sent to the elements.
6. The water in the boiler is heated to steam.
x As steam is generated and pressure builds the air is pushed out through the steamtrap.
x When steam goes through the steam trap and heats it to 192 degrees it closes.
7. Pressure builds in the boiler to the set point of 8-10 PSI (except 36CEM16 or pressure
steamers that are set at 5PSI).
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x The operating pressure switch opens and the heat circuit is de-energized.
x When the pressure drops below the set point the heat circuit is energized and the heat
process begins again.
8. Water continues to fill until the high probe is grounded.
x When the high probe is grounded the WF terminal on the water level board is de-
energized.
x The fill solenoid closes until the high probe is ungrounded for 05 seconds.
x If the water level drops below the high probe for more than 20 seconds the WF
terminal is energized and the water fill circuit begins again.
9. When the unit is turned off, by depressing the red rocker switch,
x 115 VAC is removed from the heat circuit.
x 115 VAC is removed from the drain circuit and the normally open drain valve opens
allowing the unit to drain.
x 115 VAC is sent to the 3-minute timer.
x The three-minute timer will energize the fill solenoid for 3 minutes while the steamer
drains.
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ELECTRIC GENERATOR CONTROL WIRING
CALIFORNIA CODE (ASME CSD-1)
(INTERMITTENT BLOWDOWN OPTION)
FUSEBLOCK
P/N 109374
FUSES
P/N 109380
FU
FU
TO LINE SIDE OF CONTACTOR
PHASES 1 & 3 OR
TO TERMINAL BLOCK
TRANSFORMER
P/N 20535 (208V-480V UNTS)
P/N 20536 (600V UNITS)
P/N 107040 (380V-415V UNITS)
BRN
POWER SWITCH
P/N 19993
BLK
BLK
LOW
WATER
SWITCH
P/N 19995
H4
X1
3
2
P/N 20478
1
BLU
WF
L1
WATER LEVEL CONTROL
HTR
OPERATING
PRESSURE
YEL
SWITCH
P/N 19947
HIGH LIMIT
PRESSURE
SWITCH
P/N 19947
ORNBLK
3 MINUTE
INTERVAL
TIMER
POWER ON
CONTROL
CIRCUIT
P/N 23198
H1 PRIMARY
X2 SECONDARY
R
YEL
RELAY
P/N 106561
74
93
ORN
GRA
L2
GRN
COM
BLK
HI
RED
LOW
CONTACTOR COILS
P/N 03506 OR 03509
CONTACTOR COILS
P/N 03506 OR 03509
RED
PNK
WATER VALVE
P/N 22223
BOILER
GROUND
WATER LEVEL
PROBE
EXTENSION
P/N 62452
LOW WATER
CUTOFF PROBE
EXTENSION
P/N 62453
(REF: PROBE)
P/N 16671
AS REQUIRED
A
BBA
AS REQUIRED
BA
AB
RESET
A
BLUBLU
WHT
WHT
WHT
WHT
WHT
WHT
WHT
PRP
RESET SWITCH
P/N 19994
INTERMITTENT BLOWDOWN OPTION - DRAIN VALVE WIRING
3
RED
RECYCLING
INTERVAL
2
TIMER
P/N 104716
1
PRP
AB
6
PRP
DRAIN VALVE
P/N 22221
DRAIN VALVE
P/N 22221
WHT
REDRED
WHT
REDRED
104870 E
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PROBLEM:
Electric Boiler
won't build
pressure
Boiler won't build
pressure
Is the red ligh t on
in the power
switch?
No
Is there p ow er to
the s t eam er?
Yes
No
Connect power
to st eam er.
Replac e the
latching relay.
Repair
or Replace the
probe circuit.
Steamer won' t
Replac e the
water boar d
Is there 120 VAC
between ter m i nals
L2 and HTR on t h e
Yes
water board wit h a
jumper b etween
Low and C?
See
fill.
No
Is there water in
No
the sight glass?
Is the Amber ligh t
Is there 120 VAC
terminals L2 and
No
HTR on the water
Yes
Yes
on in the reset
switch?
No
between
board?
Yes
After depressing
the reset switch,
Yes
does th e A m ber
light go off?
Is there 120 VAC
to the coil(s) of the
contactor(s)?
Replac e the
on/off rocker
switch
Replace
the high limit
pressure
switch
Yes
Yes
No
Is there 120 VAC
to the coil(s) of the
contactor(s) with
No
pressure switch
With the High
Limit pressu r e
switch
temporarily
bypassed , does
the Amber li g h t go
off when the reset
switch is
depressed?
No
Does this boiler
have the op t ional
Secondary Low
Water Cut Out?
the operating
temporarily
bypassed?
No
No
from terminal 6 t o
9 on the latching
relay, does the
Amber light go out
No
switch depressed?
With the SLWCO
bypassed , does
the Amber li g h t go
Yes
off with the reset
switch depressed?
SLWCO switch
Yes
With a jumper
with the reset
No
switch
temporarily
Yes
Replac e the
Replac e the
latching r elay
Replac e the
latching r elay
Is there 120 VAC
No
to terminal 6 on
the latching relay?
Yes
Replac e the
Reset switch
Yes
Does the contactor
pull in?
Yes
Is ther e an amp
draw at t h e
element?
Yes
Is there allot of
steam comin g ou t
the drain?
Yes
Replac e the
steam t rap
No
No
No
Replac e the
contactor
Replac e the
element.
Elements heati ng
the water, the
Boiler is making
steam. Check for
Yes
Replace
the operating
pressure
switch
With
leaks.
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Boiler
won't fill.
Yes
PROBLEM:
Electric boiler
won't fill
Is there p ow er to
the s t eam er?
Yes
Is there w at er to
the s t eam er?
Yes
Is there 120 VAC
between the L1
and L2 on the
water board ?
Yes
Is there
120 VAC between
L2 and W F on t h e
water board ?
No
No
No
Supply power
to the s t eamer.
Supply cold
water to the
Replac e the
on/off rocker
No
steamer.
switch .
Remove
the wire from th e H I
terminal on the water
board. Is th er e 12 0
VAC between L2 and
WF?
No
Replac e the
water boar d
Replace wiri n g
to drain
solenoid.
Replac e the
wiring to the
intermittent
blowdown
timer .
No
the s t eam er have
blowdown timer?
No
between ter m i nals
2&3 on the timer?
Replac e the
wiring to the fi ll
solenoid.
Replace the f il l
solenoid
Does
the opt i onal
intermittent
Yes
Is
there 120 VAC
Yes
Replac e the
intermittent
blowdown
timer.
No
No
No
Yes
Is there
120 VAC across
the coil of the f il l
solenoid?
Yes
Is
water leaving the
fill solenoid?
Yes
Is there
120 VAC across
the coil of the
drain valve?
Yes
Is water draining
from the
generator?
Yes
Replac e the
drain valve.
No
Yes
Is there
debris on the HI
probe extension?
Yes
Clean or
replac e t he
probes
extension.
If water
is leaving the fill
solenoid and not
draining from th e
generator where is it
going? check for
leaks..
No
Replac e the
wire to the Hi
probe.
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PROBLEM:
Electric Boiler
Over
Pressurizes
(15# Safet y
valve opens)
Replace
operating
pressure
switch
Replac e the
safety valve.
No
service manual f or
Yes
Boiler over
pressurizes
Does operating
pressure switch
open at pr oper
setting (chec k
that st eam er)?
Does the 15#
safety valve op en
with little or no
pressure on the
gauge after i t h as
been repl aced?
No
Delime the
boiler.
Does the contactor
continue to pull in
Yes
Does the pressure
No
with no voltage to
with operating
pressure switch
open?
No
in the gauge
continue to ris e
contactor coil?
Yes
Yes
Replace
contacto.r
Replac e the
weeper val ve .
Replace
operating
pressure
switch.
PROBLEM:
Electric Boiler Stops Producing Steam
Boiler stops
steaming
Does th e am ber
light in the reset
No
switch come on?
Yes
Is the temperature
sensitive dot
(surrounded by a
yellow circ le) on
the water board
white?
No
Replace
the water board . I t h as
reached a temperatur e of
over 180
degrees.
Yes
Does boiler have
the opt i onal
Secondary Low
Water Cut Out?
Yes
Will Boiler stop
making steam
with SLWCO
temporarily
bypassed?
No
No
Yes
Delime boiler
Yes
Are the probes
covered with
scale?
No
Is high pressure
switch opening
prematurely?
No
Replac e the
water boar d
Yes
Replace high
pressure switch
Does SLWCO
open and c l ose as
float is moved up
and down?
No
Replace
Secondary Low
Water Cut Out
switch.
Yes
Install delay
timer for
SLWCO
Page 14
Replace the f il l
solenoid
With the HI probe
emersed in water
is there 120 VAC
No
between ter m i nals
L2 and WF on t h e
PROBLEM: Electric Boiler Overfills
Replac e 3
Boiler over fills
Yes
water board .?
minute timer
No
With the wire
removed from
terminal 1on the 3
minute timer, i s
there 120 VAC to
the fill solenoid?
With a jumper
across termin als
HI and C on the
Yes
water b oard , i s
there 120 VAC
between L2 and
The pr obe
circuit is open.
Check con t i n ui t y of t h e
probe wire and
WF?
No
probe.
Yes
Replac e ;the
water boar d
PROBLEM: Transformer continues to fail.
Transformer Fails
start
Leave
fuse in place.
Transformer
could have been
bad.
No
After a 2 am p
inline fuse is
placed on t h e
secondary, does
the fuse open?
Yes
the resistance of
all the solenoid coils.
Compare to chart.
allow for 10 %
Check
deviation.
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