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10 cP/BP series
• lockout reset—A hard lockout can be reset by
turning the unit thermostat off and then back on
when the "RESET" dip switch is set to "Y" or by
shutting off unit power at the circuit breaker
when the "RESET" dip switch is set to "R".
The blower motor will remain active during a
lockout condition.
• uPM Board deFault settiNGs—Your UPM
board will come from the factory with the
following default settings:
• Freeze—"Terminals not jumped" on all the time
• temp—30°F
• lockout—2
• reset—"Y"
• alarm—"PULSE"
• test—"NO"
• dry contact—"Normally Open (NO)"
considerations
1. Always check incoming line voltage power
supply and secondary control voltage for
adequacy. Transformer primaries are dual
tapped for 208 and 230 volts. Connect the
appropriate tap to ensure a minimum of 18 volts
secondary control voltage. 24 volts is ideal for
best operation.
2. Long length thermostat and control wiring
leads may create voltage drop. Increase wire
gauge or up-size transformers may be required
to insure minimum secondary voltage supply.
3. FHP recommends the following guidelines for
wiring between a thermostat and the unit: 18
GA up to 60 foot, 16 GA up to 100 ft and 14 GA
up to 140 ft.
4. Do not apply additional controlled devices to
the control circuit power supply without
consulting the factory. Doing so may void
equipment warranties.
5. Check with all code authorities on requirements
involving condensate disposal/over fl ow
protection criteria.
6 720 220 045
seQueNce oF oPeratioN
cooling Mode
See Typical Wiring Diagrams at the end of the
document. Energizing the "O" terminal energizes
the unit reversing valve in the cooling mode. The fan
motor starts when the "G" terminal is energized.
When the thermostat calls for cooling (Y), the loop
pump or solenoid valve if present is energized and
compressor will start.
Once the thermostat is satisfi ed, the compressor
shuts down accordingly and the fan ramps down to
either fan only mode or off over a span of 30 seconds
(ECM Motors).
Note that a fault condition initiating a lockout will
de-energize the compressor.
Heating Mode
Heating operates in the same manner as cooling,
but with the reversing valve de-energized. The
compressor will run until the desired setpoint
temperature on the thermostat is achieved.
Once the thermostat is satisfi ed, the compressor
shuts down and the fan ramps down in either fan
only mode or turns off over a span of 30 seconds.
Auxiliary electric heating coils are not available on
the BP/CP product line.
uNit oPtioNs
Hot Gas reHeat (HGr)
Hot gas reheat allows the user to not only control
space temperature, but also humidity levels within
the conditioned space. An excess of moisture in the
space can allow mold growth leading to damage in
the structure or interior surfaces as well as
reducing the air quality and creating an unhealthy
environment.
The typical control of a unit is by a thermostat that
senses the temperature in the space. By utilizing a
humidistat in addition to the thermostat we are
able to monitor the humidity levels in the space as
well. The HGR option allows cooling and
dehumidifi cation to satisfy both the thermostat and
humidistat.
Subject to change without prior notice
sequence of operation
Revised 05-12
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