Bosch FHP560 Applications Manual Download Page 8

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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

eld-installed smoke/

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 veri

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 con

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-con

gurable, factory assigned I/O parameter

Binary Outputs

Port

Outputs Accepted

Signal Type

Signal Label

Overview

BO-1*

Fan

24VAC

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 con

gured

either for "continuous" mode (fan is energized continuously during occupied and

night set back modes), or con

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

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

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 satis

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

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 satis

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 con

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

Fresh Air Damper
(On/Off)

24VAC

Heating Stage 1
(Aux Heat)

24VAC

BO-5