Heat Controller Water Source Heat Pump - Manual (Page 38)

Section 2 WattMaster WHP
2-14 Installation and Wiring
WHP Controller
The WHP Controller may be installed in any convenient protected location. Observe the
recommended environmental limitations for the WHP Controller when selecting a
installation location. The environmental limitations are a temperature range of 10
°
F to
149
°
F, and a maximum operating humidity of 90% RH non-condensing.
The WHP Controller may be mounted by fastening to a flat surface through the mounting
plate. The unit is mounted by four (4) screws in the corners. Select the correct screws or
other fasteners for the type of mounting material being utilized.
RELAY
OUTPUT
COM
1-3
OUT
OUT
1
2
COM
4-5
OUT
OUT
OUT
3
4
5
24VAC
GND
PWR
COMM
T
SHLD
LD4
REC.
12V
AIN
1
2
3
4
5
GND
GND
AOUT
AIN
AIN
AIN
AIN
4-5
OUT
COMM
TEST
32K
8K
RAM EPROM
ADDRESS ADD
PRESSURE
SENSOR
485
COMM
R
YS101564
E W
D
O
G
0-
5
VD
C
0-
1
VD
C
DIAGNOSTIC BLINK
CODE LED
ADDRESS SWITCH
( ADDRESS 18 SHOWN )
EPROM
PIN 1
INDICATION
RAM
RAM SIZE
SELECT JUMPER
PAL
REAL TIME
CLOCK CHIP
24VAC
POWER
INPUT
POWER LED
COMMUNICATIONS
DRIVER CHIP
COMMUNICATIONS
LED
ANALOG INPUTS
STATIC PRESSURE
SENSOR INPUT
RS-485
COMMUNICATIONS
LOOP
CPU
Space Sensor
Slide Adjust
Supply Air Temp
Leaving Water
Temp or
Dirty Filter
Lockout
24 VAC Common for Inputs 1 - 3
Compressor-On/Off (Heat 2)
Heat Pump Reset (Cool 1)
Aux. Heating or Cooling (Cool 2)
Rev. Valve-On/Off (Heat 1)
Fan-On/Off
24 VAC Common for Inputs 1 - 3
Mounting Backplate
Figure 2-10: WHP Controller