Orion System Water Source Heat Pump Module Tulsa - Manual (Page 4)

Water Source Heat Pump Module
Technical Guide 4
Overview
The Water Source Heat Pump Module monitors the compressors on an
AAON Water Source Heat Pump unit and can disable the compressors
based on low Suction Pressure, Leaving Water Temperature, and Water
Proof of Flow inputs. It also utilizes a Delay Timer to prevent the com-
pressors from turning on at the same time.
There are two water-only versions of the Water Source Heat Pump
Module—the OE334-23-WPM-A which uses R-410A refrigerant and
the OE334-23-WPM-22-A which uses R-22 refrigerant.
There are also three R-410-A glycol versions—the OE334-23-WPM-A20
which uses 20% glycol—the OE334-23-WPM-A25 which uses 25%
glycol and the OE334-23-WPM-A40 which uses 40% glycol.
The Water Source Heat Pump Module can be used stand-alone. It can
also
be connected to the VCM-X WSHP Controller (OE332-23-VCMX-
WSHP-A) or SA Controller (OE332-23-SA) using the E-BUS Distribu-
tion Module (OE365-23-EBD). This allows the Water Source Heat Pump
Module to receive control data and alarms from the VCM-X WSHP or
SA Controller. Please note: The SA Controller only works with the
OE-334-WPM-A (410A version).
Module Overview
Figure 1: Water Source Heat Pump Module
The Water Source Heat Pump Module requires a 24 VAC power con-
nection with an appropriate VA rating.
Features
The Water Source Heat Pump Module provides the following:

Can be operated stand-alone or connected to a
VCM-X WSHP Controller or SA Controller using
the E-BUS Distribution Module to E-BUS interface

Capable of controlling digital compressors when
connected to the VCM-X WSHP Controller or SA
Controller

Monitors suction pressure, leaving water
temperature, and water proof of fl ow

Provides Delay Timer to prevent compressors
from turning on at the same time
NOTE: The Water Source Heat Pump Module contains no user-
serviceable parts. Contact qualifi ed technical personnel
if your Module is not operating correctly.
WATTMASTER CONTROLS
Y 102374 REV 0 S
MADE IN USA
WattMaster Label
#LB102069-A
Rev.: 1B
E-BUS
Connector
E-BUS
Connector
+5V
PRES
GND
+24
VAC GND
BIN 1
BIN 2
BIN 3
BIN 4
BIN 5
BIN 6
BIN 7
COM
SUCTION
PRESSURE
TRANSDUCERS
#1 thru #4
COMP. 1 ENABLE
COMP. 2 ENABLE
COMP. 3 ENABLE
WSHP Protection Module
Orion No.: OE334-23-WPM
COMP. 4 ENABLE
HEAT ENABLE
H2O POF #1
H2O POF #2
COMMON
T 1
T 2
GND
LEAVING WATER TEMP 1
GROUND
LEAVING WATER TEMP 2
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
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP. #2 ENABLE
COMP. #1 ENABLE R1
R2
R3
R4
RC RELAY COMMON
COMP. #3 ENABLE
COMP. #4 ENABLE
SYSTEM A - CNTRLR C2
SYSTEM B - CNTRLR C2
+5V
PRES
GND
NOT USED
DIGITAL COMP #1 THRU #4
NON-DIGITAL COMP #1 THRU #4
COPELAND CNTRLR P6
COPELAND CNTRLR P5
AAON No.: R90680
WattMaster Label
#LB102069-A
Rev.: 1F
E-BUS
Connector
E-BUS
Connector +24
VAC GND
BIN 1
BIN 2
BIN 3
BIN 4
BIN 5
BIN 6
BIN 7
COM
COMP. A1 ENABLE
COMP. A2 ENABLE
COMP. B1 ENABLE
WSHP Module
Orion No.: OE334-23-WPM-A
AAON No.: R88350
www.aaon.com
www.orioncontrols.com
COMP. B2 ENABLE
HEAT ENABLE
WATER POF A
WATER POF B
COMMON
T 1
T 2
GND
LEAVING WATER TEMP A
GROUND
LEAVING WATER TEMP B
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
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
LW: 36ºF HSP: 100 PSIG