Installation manual

TEMPERATURE CONTROL BT30CW-EXPR
The temperature control is located on the unit
compartment, behind the front grill.
To change the cabinet temperature:
1. Remove the two screws that hold the cover in place.
2 Adjust the temperature control knob to the desired
cavity temperature. Replace the cover.
The thermostat dial is calibrated in degrees
Fahrenheit, but does not indicate temperatures inside
the storage compartment. Typical performance for
thermostat control settings is listed below. Cabinet
thermostats are factory preset for 0°F.
SWITCH HOUSING COVER REMOVED
IMPORTANT:
Use only factory authorized
replacement parts and procedures.
CAUTION:
Always disconnect supply circuits before
removing explosion proof cover.
REPLACEMENT OF SWITCHES
Types E121 & F120
1. Remove cover, (2) switch mounting screws, switch
and insulator.
2. Disconnect (3) switch wires at switch terminal.
3. Install new switch and wire per SET POINT
ADJUSTMENTS.
4. Mount switch and insulator inside enclosure and
recalibrate per SET POINT ADJUSTMENTS.
SET POINT ADJUSTMENTS
NOTE: For set point adjustments and recalibration,
connect control to a calibrated temperature
source and stabilize unit.
TYPE E121
Adjust set point by turning external knob and pointer to
desired setting on scale.
Recalibration—adjusting set point after replacing
switch(es) and/or thermal assembly:
Slowly turn adjustment knob until switch transfers.
Compare switch transfer point to actual temperature. If
they do not agree, loosen set screws on adjustment
knob and align pointer to indicate actual temperature.
92 TEMPERATURE CONTROL