DEFROST AND TEMP CONTROL
This case is equipped with either Electric or Hot Gas defrost at the owners option. The sensor bulb and probe for electric defrost termination control is located on the top, center of the coil at the rear. The sensor bulb for temperature control is located on the right side of the evaporator behind the end cover, as shown in illustration 1 below. The discharge air probe is located behind a 3 1/2” plug button on the top flue panel also shown in illustration 1. The hot gas defrost termination sensor bulb and probe are attached to the dump line, as shown in diagram 2, which is in
the top, left hand side of the case.
The defrost termination control thermo- stat and the temperature control thermostat are both located in thermostat enclosures behind the kickplate on the left hand side of the case, as shown in diagram 3.
It is important to consult the control setting guidelines shown on page 18 before setting defrost times. Further adjustment may
PLENUM
•ELECTRIC DEFROST TERMINATION CONTROL SENSOR BULB LOCATION
•ELECTRIC DEFROST TERMINATION PROBE LOCATION
COIL 
• TEMPERATURE CONTROL SENSOR BULB LOCATION (UNDER ACCESS HATCH ON EXITING AIR SIDE OF COIL).
1
DISCHARGE AIR PROBE LOCATION (BEHIND 3 1/2” PLUG BUTTON IN TOP FLUE).
MODEL
KRZH
HOT GAS DEFROST |
|
TERMINATION CONTROL | 2 |
SENSOR BULB AND PROBE | |
LOCATION. | |
|
3
THERMOSTAT
ENCLOSURE
19
