Orion System Water Source Heat Pump X Module - Manual (Page 5)

Technical Guide
WSHP-X Module
5
Important Wiring Considerations
Please read carefully and apply the following information when wiring
the WSHP-X Module:
1. To operate the WSHP-X Module in Stand-Alone mode, you
must connect power to the 24 VAC input terminal block.
Do not allow wire strands to stick out and touch adjoining
terminals. This could potentially cause a short circuit.
2. The 1 to 5 VDC signals for the Compressor modulation need
to use 18-gauge shielded twisted pair cable, and the Drain wire
must be the GND signal.
3. All 24 VAC wiring must be connected so that all ground
wires remain common. Failure to follow this procedure can
result in damage to the module and connected devices.
4. Be sure all modular wiring harness connectors are seated
fi rmly in their respective modular connectors on the circuit
board.
Installation & Wiring
5. All wiring is to be in accordance with local and
national electrical codes and specifi cations.
6. Check all wiring leads at the terminal block for tightness.
Be sure that wire strands do not stick out and touch adjacent
terminals. Confi rm that all transducers required for your
system are mounted in the appropriate location and wired into
the correct terminals.
Stand-Alone Wiring Single Water
Circuit
To operate the WSHP-X Module as Stand Alone, connect the Module to
a 24 VAC power connection with an appropriate VA rating. See Figure
3 for wiring.
Figure 3: Water Source Heat Pump X Module as Stand-Alone for Single Water Circuit
NOTE: NORMALLY
OPEN AND RATED FOR 24 VAC POWER ONLY
ALL RELAY OUTPUTS ARE
COMPRESSOR A2 ENABLE OUTPUT
COMPRESSOR A1 ENABLE OUTPUT
GND
T1
BIN1
R
E
R1
R4
R5
R3
R2
COMM
CIRCUIT A
SUCTION PRESSURE TRANSDUCER
BK
RD
WH
BK
RD
WH
WATTMASTER CONTROLS
COMPRESSOR B1 ENABLE OUTPUT
COMPRESSOR B2 ENABLE OUTPUT
ALARM OUTPUT
BIN3
BIN5
BIN6
COM
LEAVING WATER TEMPERATURE
NOTE:
OUTPUTS ARE NOT USED ON
STAND ALONE APPLICATIONS
HVAC UNIT CONNECTIONS
CIRCUIT B
SUCTION PRESSURE TRANSDUCER
GND
24 V
A
C
- 1 AMP MAXIMUM LOAD
OE334-36-WSHPX-A
Water Source Heat Pump X
Module
BIN2
BIN4
M
ENTER
UP
DOWN
ALARM
MENU
OE334-26-WSHPX-A WSHP-X MODULE AAON NO.: V18330
WattMaster Label
#SW000054
Rev.: 1A
E-BUS
CONNECT
E-BUS
CONNECT +24
V AC
GND
www.orioncontrols.com
www.aaon.com
BIN 1
BIN 2
BIN 3
BIN 4
BIN 5
BIN 6
BIN 7
COM
- COMP. A1 EN. - HEAT ENABLE
- COMP. A2 EN. - WATER POF
- COMP. B1 EN. - WATER POF
- COMP. B2 EN. - COMMON
T 1
T 2
GND
- LEAVING WATER TEMP A
- GROUND
- LEAVING WATER TEMP B
AO1
A2O
STAGE 1- COMP. A1/B1-
STAGE 2 - COMP. A2/B2
DIGITAL COMP. A1, A2, B1, B2
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
CONNECT TO CNTLR C2 TERM.
+5V
PRES
GND
+5V
PRES
GND
SUCT. PR. SENSOR
PRES 1=A1, PRES 2=A2
PRES 3=B1, PRES 4=B2
NOT USED
PRES 1=A1, PRES 2=A2
PRES 3=B1, PRES 4=B2
+5 NOT USED, PRES TO P6 & GND TO P5
+5 TO RED, PRES TO WHT & GND TO BLK
DIGITAL COMRESSORS
NON-DIGITAL COMPRESSORS
WATER POF SYSTEM A CONTACT
COMPRESSOR A1 ENABLE CONTACT
HEAT ENABLE CONTACT
WATER POF SYSTEM B CONTACT
COMPRESSOR A2 ENABLE CONTACT
COMPRESSOR B1 ENABLE CONTACT
COMPRESSOR B2 ENABLE CONTACT
BIN7
SIG 1
GND
+V
SIG 1
GND
+V