Reznor T5BP Unit Installation Manual - Manual (Page 14)

14
Table 3. Unit Dimensions & Shipping Weights
Defrost Control Board
This control includes - 5 minute anti-short cycle timer
protection for Stage 1 Heat/Cool, defrost time interval
selection, and reversing valve, outdoor fan, and auxiliary
heat operation during defrost control. See page 11.
Defrost Temperature Sensor
The switch can be located on either end of the outdoor coil.
The switch is a non-adjustable, sealed, bi-metal sensor
set to open at 68° F and closes at 30° F. When closed,
the compressor run time is accumulated and initiates coil
defrost dependent on time interval selected.
High Pressure Switch (HPS)
A high-pressure switch is factory-installed and located in the
liquid line internal to the outdoor unit. The switch is designed
to protect the system when very high pressures occur
during abnormal conditions. Under normal conditions,
the switch is closed. If the liquid pressure rises above
650 psig, then the switch will open and de-energize the
COMPONENT FUNCTIONS
Figure 5. T5BP Heat Pump Dimensions
D W
H
DO NOT OBSTRUCT TOP OF UNIT
Allow 6' Minimum Clearance
FIGURES & TABLES
Model
Number
T5BP-
Unit Weights (Lbs.) Height -H- Width -W- Depth -D- Shipping Height
Without Packaging Shipping Weight All dimensions in inches
090C 390 424 44 1/4 37 1/2 37 1/2 50
090D 390 424 44 1/4 37 1/2 37 1/2 50
120C 427 461 52 1/4 37 1/2 37 1/2 58
120D 427 461 52 1/4 37 1/2 37 1/2 58
outdoor unit. The switch will close again once the liquid
pressure decreases to 460 psig. Please note that the switch
interrupts the thermostat inputs to the unit. Thus, when
the switch opens and then closes, there will be a 5 minute
short cycling delay before the outdoor unit will energize.
Low Pressure Switch (LPS)
A low-pressure switch is factory-installed and located in
the suction line internal to the outdoor unit. The switch
is designed to protect the compressor from a loss of
charge. Under normal conditions, the switch is closed. If
the suction pressure falls below 5 psig, then the switch
will open and de-energize the outdoor unit. The switch will
close again once the suction pressure increases above 20
psig. Please note that the switch interrupts the thermostat
inputs to the unit. Thus, when the switch opens and then
closes, there will be a 5 minute short cycling delay before
the outdoor unit will energize.