Technical Guide
Water Source Heat Pump Module
5
Installation & Wiring
Power Supply
The Water Source Heat Pump Module requires a 24 VAC power con-
nection with an appropriate VA rating.
If you will be connecting the Water Source Heat Pump Module to the
VCM-X WSHP Controller, one of the most important checks to make
before powering up the system for the fi rst time is to make sure that the
VCM-X WSHP Controller is confi gured properly for your application.
Refer to the VCM-X Controller Technical Guide for more information.
WARNING: Observe polarity! All boards must be wired
GND-to-GND and 24 VAC-to-VAC. Failure to
observe polarity could result in damage to the
boards.
Environmental Requirements
The Water Source Heat Pump Module needs to be installed in an environ-
ment that can maintain a temperature range between -30°F and 150°F
and not exceed 90% RH levels (non-condensing).
Mounting
The Water Source Heat Pump Module is housed in a plastic enclosure. It
is designed to be mounted by using the 3 mounting holes in the enclosure
base. It is important to mount the module in a location that is free from
extreme high or low temperatures, moisture, dust, and dirt. Be careful
not to damage the electronic components when mounting the module.
See Figure 2 for Module dimensions (dimensions are in inches).
Figure 2: Water Source Heat Pump Module Dimensions
WATTMASTER CONTROLS
5.64
5.83
2.07
4.14
5.05
0.29
0.56
0.18 DIA. TYP. 3 PL.
Note: Height is 1.49 inches.
WattMaster Label
#LB102069-B
Rev.: 1E
E-BUS
Connector
E-BUS
Connector
+24 VAC
GND
WSHP Module
Orion No.: OE334-23-WPM-C
AAON Coil No.: 30318
www.aaon.com
www.orioncontrols.com
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP. A2 ENABLE
COMP. A1 ENABLE
R1
R2
R3
R4
R5
RC
RELAY COMMON
COMP. B1 ENABLE
COMP. B2 ENABLE
ALARM OUTPUT
+5V
PRES
GND
+5V
PRES
GND
BIN 1
BIN 2
BIN 3
BIN 4
BIN 5
BIN 6
BIN 7
COM
SUCT. PR. SENSOR
PRES 1=A1, PRES 2=N/A
PRES 3=B1, PRES 4=N/A
NOT USED
PRES 1=A1, PRES 2=N/A
PRES 3=B1, PRES 4=N/A
COMP. A1 ENABLE
COMP. A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
COOL ENABLE
WATER POF
NOT USED
COMMON
T1
T2
GND
LEAVING WATER TEMP
GROUND
NOT USED
LED BLINK CODES
LED NAME STATUS
OFF MODE 1
COOLING MODE 2
HEATING MODE 3
LED NAME ALARM
LOW SUCTION PRESSURE 1
COMPRESSOR LOCKOUT 2
WATER FLOW FAILURE 3
LOW LEAVING WATER TEMP. 4
LED NAME PRES 1-4
SENSOR DETECTED ON
NO SENSOR DETECTED OFF
LOW SUCTION PRESSURE 1
COMPRESSOR LOCKOUT 2
AO1
A2O
CIRCUIT A -COMP. A1
+5 NOT USED, PRES TO P6 & GND TO P5
+5 TO RED, PRES TO WHT & GND TO BLK
CONNECT TO CNTLR C2 TERM.
CIRCUIT B - COMP. B1
DIGITAL COMRESSORS
DIGITAL COMP. A1 & B1
NON-DIGITAL COMPRESSORS
(12 paginas)
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