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FHP560 Controller Applications Manual
Bosch Thermotechnology Corp.
Data subject to change Page____ of ____
Universal Inputs
Port Inputs Accepted Signal Type Jumper Position Overview
IN-5
Smoke Detector
Switch (SDS)
Dry n/a
The normally-open contacts of a fi eld-installed smoke/fi re alarm detector may be
wired to this input to shut the heat pump unit down during an emergency. Unit
operation is ceased 5 seconds after a contact closure is detected at the input.
Pump Status
Switch (PSS)
Dry n/a
For units with a loop pump option, the status output from a factory installed
current sensor used to monitor pump operation may be connected to this input to
provide pump status during unit operation. The unit is allowed to run only when the
sensor contacts are verifi ed as closed at the input after the pump has been indexed
to run. If there's no contact closure after the loop pump has been commanded on,
the unit is not allowed to run, and an alarm is generated after 15 seconds. If the
pump fails during normal unit operation the compressors are shutdown after 20
seconds and an alarm is generated.
Mixed Air
Temperature
Sensor
Therm n/a
Select this confi guration parameter if a Mixed Air Temperature sensor is connected
in IN-5.
Input Expansion
Module (IEM)
Dry n/a
The Input Expansion Module is used in this input when multiple options that
require a binary input are required (up to 3 inputs). The combinations of these
options are limited only to the seven (7) sets of three listed below.
Input Expansion Module (IEM) Combination
These seven (7) sets of binary input combinations may be used with an IEM
connected to this input. The three (3) ports are labled (A, B, C) and must be
connected correspondingly. In situations where not all three inputs are used, the
other inputs may be disabled in the software, or the board may be jumpered if the
option requires a closed contact to function properly.
PORT 1 (A) PORT 2 (B) PORT 3 (C)
Dirty Filter Switch
(DFS)
Fan Status Switch
(FSS)
Valve End Switch
(VES)
Smoke Detector
Switch (SDS)
Fan Status Switch
(FSS)
Valve End Switch
(VES)
Dirty Filter Switch
(DFS)
Fan Status Switch
(FSS)
Differential
Pressure Switch
(DPS)
Smoke Detector
Switch (SDS)
Fan Status Switch
(FSS)
Dirty Filter Switch
(DFS)
Dirty Filter Switch
(DFS)
Fan Status Switch
(FSS)
Damper End
Switch (DES)
Smoke Detector
Switch (SDS)
Fan Status Switch
(FSS)
Secondary Drain
Pan (SDP)
Dirty Filter Switch
(DFS)
Fan Status Switch
(FSS)
Pump Status
Switch (PSS)
IN-6*
Discharge Air
Temperature
Therm n/a
A factory-installed thermistor mounted on the heat pump unit's blower housing
(air handler section) is connected to this input for all orders requiring the factory
installed DDC option. It is highly recommended that for applications requiring
a more accurate representation of the supply air temperature, a duct mounted
temperature probe be used instead to relocate the source of the discharge air
temperature just downstream of the supply air duct. If this recommendation is
followed the factory-installed thermistor may be disconnected from this input, and
replaced with the leads from the duct mounted sensor.
Table 6
* Non-confi gurable, factory assigned I/O parameter
Binary Outputs
Port Outputs Accepted Signal Type Signal Label Overview
BO-1* Fan 24VAC G
Binary Output 1 is factory reserved for the fan command (G) and is wired to the
unit terminal block in the electrical box. The fan mode may be software confi gured
either for "continuous" mode (fan is energized continuously during occupied and
night set back modes), or confi gured to run in "auto" mode (fan is energized only
during a call for heating or cooling). Continuous mode is the factory default setting.
BO-2* Reversing Valve 24VAC O
Binary Output 2 is factory reserved for the reversing valve command (O) and is
wired to the valve via the unit terminal block in the electrical box. For heat pump
units, the output is energized during a call for cooling, and remains de-energized
for heating. For straight cool units (cooling only) where no reversing valve is
installed, the output is disabled and not used.
BO-3*
Compressor
Stage 1
24VAC Y1
Binary Output 3 is factory reserved for the compressor stage 1 command (Y1) and
is connected to the UPM I board's "Y" terminal ("Y1" for dual compressor units
using the UPM II board) via the unit terminal block in the electrical box. The Y1
output is off when zone setpoint is satisfi ed and within the temperature deadband
(between heating and cooling setpoints). As the zone temperature rises above
the cooling setpoint and demand exceeds 30%, Y1 is enabled and PID methods
are employed to ensure the zone temperature is maintained within 1°F of cooling
setpoint. As the zone temperature drops below the heating setpoint and demand
exceeds 30%, Y1 is enabled and PID methods are employed to ensure the zone
temperature is maintained within 1°F of heating setpoint.
BO-4
Compressor
Stage 2
24VAC Y2
Binary Output 4 is factory defaulted for the compressor stage 2 command (Y2) and
is connected to the second stage solenoid (Y2S) for 2-step, single compressors,
or to the “Y2” terminal for dual compressor units using the UPM II board, via the
unit terminal block in the electrical box. The Y2 output is off when zone setpoint
is satisfi ed and within the temperature deadband (between heating and cooling
setpoints). The Y2 output is energized after Y1 has been on for more than 7
minutes, and the heating/cooling demand exceeds 60%.
For 1 compressor 1 stage units, Binary Output 4 may be confi gured for one of the
following options: Hot Gas Reheat (On/Off), Single Stage Auxiliary Electric Heat, or
Outside Air Damper (On/Off).
Hot Gas Re-Heat
(On/Off)
24VAC H
Fresh Air Damper
(On/Off)
24VAC D
Heating Stage 1
(Aux Heat)
24VAC W
BO-5
Hot Gas Re-Heat
(On/Off)
24VAC H
Binary Output 5 may be factory or fi eld confi gured for one of the following
options: Hot Gas Reheat (On/Off), Single Stage Auxiliary Electric Heat, Outside Air
Damper (On/Off), Condenser Water Valve, Circulating Water Pump, Economizer, or
Boilerless Electric Heat.
Fresh Air Damper
(On/Off)
24VAC D
Heating Stage 1
(Aux Heat)
24VAC W
Boilerless Control
(Aux Heat)
24VAC W
Economizer
Cooling Control
24VAC EV
Circulation Water
(Loop) Pump
24VAC P
Condenser Water
Valve
24VAC CV
Table 7
* Non-confi gurable, factory assigned I/O parameter
All I/Os must be selected/confi gured in the software or
over a BAS network.
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