WELLS BLOOMFIELD, LLC
2 ERIK CIRCLE, P. O. Box 280 Verdi, NV 89439
telephone: 775-689-5707
fax: 775-689-5976
www.wellsbloomfield.com
p/n 307583 Rev. (-) ECN-13410 I 212 080201 cps
INSTALLATION INSTRUCTIONS
KIT# 507582 (WB-1)
KIT# 507584 (WB-2)
UPGRADE TEMP CONTROLLER IN
WB-SERIES WAFFLE BAKERS
Kits 507582 and 507584 replace the existing baking temperature
control thermostat with a solid state temperature control system.
Each kit will upgrade a single waffle baker clamshell (WB-1 or one
side of a WB-2)
KIT CONTENTS
I. PREPARATION
1. Disconnect the appliance from electrical power and allow to
cool before performing service.
2. Remove back panel. Extract and save power cord and strain
relief from panel. Discard old back panel.
3. Remove bottom panel. Save bottom panel for later
re-installation.
4. Remove four screws holding base to cabinet. Remove two
acorn nuts securing grid to base. Save hardware for later use.
5. Disconnect power leads from existing thermostat and heating
element. Remove thermostat jumper from heating element.
Remove thermostat and mounting bracket from bottom of grid.
Discard bottom grid wires.
6. Remove hole plug from top grid casting. Remove nut securing
grid to casting. Save hardware for later use.
7 Disconnect power leads and ground wire from grid. Discard
top grid wires. Save sleeving for later use.
8. Discard base gasket, upper grid gasket and lower grid gasket.
9. When used on 208-240V units, remove and discard arc
suppressor from power switch.
212
Page 1 of 5
CAUTION:
ELECTRIC SHOCK
HAZARD
Disconnect the appliance from
electrical power before performing
service.
CAUTION:
BURN HAZARD
Allow appliance to cool before
performing service.
PART NO. DESCRIPTION
507582
QTY
507584
QTY
50337 Gasket, Grid Top & Bot 2 2
50338 Gasket, Bottom Casting 1 1
50407 Term Coupler, 1/4M x 1/4M Insul Push-On 1 1
61064 Hole Plug w/Mounting Stud 1 2
507278 Controller, Temperature 1 1
507279 Sensor, Temperature 1 1
507281 Wire Set, Top Grid 1 1
507355 Term Connector, 1/4F x Twin 1/4M Push-On 1 1
507478 Panel, Rear WB-1 1
507479 Panel, Rear WB-2
1
507482 Mounting Bracket, Controller 1 1
Literature Package 1 1
507282 Wire Set, Bottom Grid 1 1
54284 Pop Rivet, 3/32" Dia x 1/8" Lg 2 2
52926 Terminal STPO 1/4" 18-14 Ga. 1
REMOVE AND
DISCARD
2 POWER WIRES
1 GROUND WIRE
(SAVE SLEEVES)
REMOVE AND
SAVE POWER
CORD AND
STRAIN RELIEF
DISCARD OLD
BACK PANEL
DISCARD
GASKET
DISCARD
GASKET
DISCARD
GASKET
REMOVE AND
DISCARD
THERMOSTAT
BRACKET
AND JUMPER
REMOVE AND
DISCARD
POWER
LEADS
REMOVE FOUR
BASE SCREWS
(208-240V)
REMOVE AND
DISCARD ARC
SUPPRESSOR
212 p/n 307583 Kit # 507582_4 Instruction
Page 2 of 5
II. NEW COMPONENT INSTALLATION
1. Thread new power leads and ground wire of provided wire set
(p/n 507281) through channel of upper grid casting, then
through hinge and rigid conduit:
NOTE: Refer to wiring diagram for wire numbers.
a. For WB-1, cut push-on terminal from controller-end of wire
#5 (it will not pass through the 90º conduit otherwise.)
b. Be sure power leads are threaded through rubber sleeving
and ground lead threads through glass sleeve (sleeving
salvaged from part I).
c. For WB-1, strip 3/16" of insulation from controller-end of
wire #5. Crimp provided terminal (p/n 52926) to wire #5.
d. Connect wiring and reassemble upper grid using a new
grid gasket (p/n 50337).
2. Thread new sensor (p/n 507279) and wire set (p/n 507282)
through forward hole in cabinet base mounting, such that
terminal ends are inside of cabinet. Thread power leads and
sensor head through large hole in new gasket, (p/n 50338),
then through cutout in bottom of base casting.
3. Securely attach sensor head to either boss on back of grid.
4. Assemble controller (p/n 507278) to controller mounting
bracket (p/n 507482).
5. Reassemble lower grid and new controller to cabinet:
a. Loosely attach base casting and gasket to cabinet.
b. Attach controller and mounting bracket, inside of cabinet,
by the two rearmost base screws. Be sure controller is
accessible from the rear.
c. Be sure base and gasket are properly positioned, then
tighten base screws.
6. Install power cord and strain relief (salvaged from part I) into
new back panel (p/n 507478 or 507479).
7. Assemble tether (from wire set 507282) to hole plug (61064).
From cabinet exterior side, pull tether through access hole in
back panel. Secure ground leads from hole plug and power
cord to mounting stud.
NOTE: For WB-2, when upgrading one side only, insert hole
plug (without tether) in unused access hole, then bend two
opposing prongs outward to secure.
8. Refer to appropriate wiring diagram to complete wiring:
a. For 120V units, use supplied twin connector (p/n 507355)
to connect wires #3 & #4 to controller output module.
b. For 208/240V units, use supplied coupling (p/n 50407) to
connect wires #4 & #5 together.
c. Upper grid ground wire connects to stud at entry to hinge
conduit.
9. Re-install bottom panel. Apply provided wiring diagram decal
to inside of new back panel, then install back panel.
10. Connect unit to electric power and test for proper operation.
SENSOR
INSTALL
POWER CORD
STRAIN RELIEF
AND HOLE
PLUG IN NEW
BACK PANEL
WIRE SET
UPPER
WIRE SET
LOWER
NEW GASKET
NEW GASKET
NEW GASKET
NEW SENSOR
NEW
CONTROLLER
AND BRACKET
120V
208-240V
FOR WB-1
REPLACE
TERMINAL
ON WIRE #5
(SEE TEXT)
212 p/n 307583 Kit # 507582_4 Instruction
Page 3 of 5
III. CHECK BAKING TEMPERATURE
1. Use a digital thermometer with an oven probe.
2. Place the probe on the lower grid, then gently close the upper
grid.
3. Press the power switch "ON". Wait 15 minutes for the waffle
baker to come up to heat, and for the temperature to stabilize.
4. Read the temperature on the digital thermometer.
IV. ADJUST TEMPERATURE
IMPORTANT:
Controllers are factory set (and calibration sealed) at 390ºF ±5ºF
(200ºC ± 3ºC) and do not normally require adjustment. Adjusting
the controller will break the calibration seal.
1. Pry round hole plug from back of that side of the waffle baker.
DO NOT disconnect grounding tether from the hole plug.
2. Use a thin flat-blade screwdriver to turn the temperature
adjustment dial. Rotate clockwise to increase temperature;
counter-clockwise to decrease temperature.
NOTE: Make small incremental changes only.
3. Allow at least 3 minutes for temperature to stabilize before
making another adjustment.
4. When desired temperature is reached reinstall hole plug.
CAUTION:
BURN HAZARD
Exposed surfaces of the waffle
baker may be hot to the touch and
can cause burns. Waffle baker grids
are very hot and will cause serious
burns on contact.
CAUTION:
SHOCK HAZARD
Disconnect appliance from electric
power before removing access plug.
Reconnect power only after plug
has been reinstalled.
Proper temperature for baking
waffles is 390ºF (200ºC).
Variations in altitude and/or batter
mix may require a slightly different
temperature for best results.
+
-
212 p/n 307583 Kit # 507582_4 Instruction
Page 4 of 5
WIRING DIAGRAM WB-1
230
230
110
110
COMM
COMM
SENSOR
SENSOR
OUTPUT
OUTPUT
BLACK
BLACK
WHITE
WHITE
RED
RED
WHITE
WHITE
UPPER
HEATING
ELEMENT
120V 450W
UPPER
HEATING
ELEMENT
120V 450W
LOWER
HEATING
ELEMENT
120V 450W
LOWER
HEATING
ELEMENT
120V 450W
LIGHTED
POWER
SWITCH
LIGHTED
POWER
SWITCH
POWER
CORD
POWER
CORD
TEMPERATURE
CONTROL
BOARD
TEMPERATURE
CONTROL
BOARD
TEMPERATURE
SENSOR
TEMPERATURE
SENSOR
1
1
2
2
6
6
7
7
5
5
3
3
4
4
10
10
VOLTS
VOLTS
NOM. AMPS
NOM. AMPS
120
208
240
220
7.5
3.3
3.8
3.6
MODEL WB-1 SINGLE WAFFLE BAKER 120V SINGLE PHASE
MODEL WB-1 SINGLE WAFFLE BAKER 208-240V SINGLE PHASE
WIRE
COUPLER
50407
307434 ISSUE (-)
307434 ISSUE (-)
WAFFLE BAKER WB-1
WAFFLE BAKER WB-1
CONNECTOR
507355
212 p/n 307583 Kit # 507582_4 Instruction
Page 5 of 5
WIRING DIAGRAM WB-2
230 230
230 230
110 110
110 110
COMM COMM
COMM COMM
SENSOR SENSOR
SENSOR SENSOR
OUTPUT OUTPUT
OUTPUT OUTPUT
BLACK
BLACK
WHITE
WHITE
RED RED
RED RED
WHITE WHITE
WHITE WHITE
LEFT UPPER
HEATING ELEMENT
120V 450W
LEFT UPPER
HEATING ELEMENT
120V 450W
RIGHT UPPER
HEATING ELEMENT
120V 450W
RIGHT UPPER
HEATING ELEMENT
120V 450W
LEFT LOWER
HEATING ELEMENT
120V 450W
LEFT LOWER
HEATING ELEMENT
120V 450W
RIGHT LOWER
HEATING ELEMENT
120V 450W
RIGHT LOWER
HEATING ELEMENT
120V 450W
LIGHTED
POWER
SWITCH
LIGHTED
POWER
SWITCH
LIGHTED
POWER
SWITCH
LIGHTED
POWER
SWITCH
POWER
CORD
POWER
CORD
TEMPERATURE
CONTROL
BOARD
TEMPERATURE
CONTROL
BOARD
TEMPERATURE
CONTROL
BOARD
TEMPERATURE
CONTROL
BOARD
TEMPERATURE
SENSOR
TEMPERATURE
SENSOR
TEMPERATURE
SENSOR
TEMPERATURE
SENSOR
11
1
1
22
22
66
66
77
77
55
55
33
33
44
44
10 10
10 10
VOLTS NOM. AMPS
208
240
220
6.5
7.5
7.2
MODEL WB-2 DUAL WAFFLE BAKER 120V SINGLE PHASE
MODEL WB-2 DUAL WAFFLE BAKER 208-240V SINGLE PHASE
VOLTS
120
NOM. AMPS
15.0
9
9
8
8
307434 ISSUE (-)
307434 ISSUE (-)
WAFFLE BAKER WB-2
WAFFLE BAKER WB-2
WIRE
COUPLER
50407
CONNECTOR
507355
WIRE
COUPLER
50407
CONNECTOR
507355
-
1
-
2
-
3
-
4
-
5
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