Orion Water Source Heat Pump Module Tulsa User Manual
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
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
Tulsa
Factory Packaged Controls
Water Source
Heat Pump Module
Technical Guide
www.aaon.com
www.orioncontrols.com
WSHP Protection Module
WSHP Module
Orion No.: OE334-23-WPM
Orion No.: OE334-23-WPM-A
NON-DIGITAL COMPRESSORS
NON-DIGITAL COMP #1THRU #4
SUCT. PR. SENSOR
+5V
SUCTION
+5V
PRES 1=A1, PRES 2=A2
PRES
PRESSURE
PRES
PRES 3=B1, PRES 4=B2
GND
TRANSDUCERS
GND
+5 TO RED, PRES TO WHT & GND TO BLK
#1 thru #4
DIGITAL COMRESSORS
DIGITAL COMP #1THRU #4
+5V
NOT USED
PRES
+5V
PRES 1=A1, PRES 2=A2
NOT USED
GND
PRES
COPELAND CNTRLR P6
PRES 3=B1, PRES 4=B2
GND
COPELAND CNTRLR P5
+5 NOT USED, PRES TO P6 & GND TO P5
BIN 1
BIN 1
COMP.A1 ENABLE
COMP. 1 ENABLE
BIN 2
BIN 2
COMP.A2 ENABLE
COMP. 2 ENABLE
COMP. B1 ENABLE
COMP. 3 ENABLE
BIN 3
BIN 3
COMP. 4 ENABLE
COMP. B2 ENABLE
BIN 4
BIN 4
BIN 5
BIN 5
HEAT ENABLE
HEAT ENABLE
BIN 6
BIN 6
H2O POF #1
WATER POFA
BIN 7
BIN 7
H2O POF #2
WATER POF B
COMMON
COMMON
COM
COM
T1
T1
LEAVING WATER TEMP 1
LEAVING WATER TEMP A
T2
T2
LEAVING WATER TEMP 2
LEAVING WATER TEMP B
GROUND
GROUND
GND
GND
E-BUS
E-BUS
Connector
Connector
WattMaster Label
WattMaster Label
#LB102069-A
#LB102069-A
Rev.: 1B
Rev.: 1F
Connector
Connector
RELAY CONTACT RATING
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
IS 1 AMP MAX @ 24 VAC
COMP.A1 ENABLE
COMP. #1 ENABLE
COMP.A2 ENABLE
COMP. #2 ENABLE
COMP. B1 ENABLE
COMP. #3 ENABLE
COMP. B2 ENABLE
COMP. #4 ENABLE
ALARM OUTPUT
RELAY COMMON
RELAY COMMON
AAON No.: R88350
AAON No.: R90680
LW: 36ºF HSP: 100 PSIG
DIGITAL COMP. A1, A2, B1, B2
SYSTEM A - CNTRLR C2
STAGE 1- COMP. A1/B1-
SYSTEM B - CNTRLR C2
STAGE 2 - COMP. A2/B2
CONNECT TO CNTLR C2 TERM.
E-BUS
E-BUS
AO1
A2O
GND
GND
R1
R1
R2
R2
R3
R3
R4
R4
R5
RC
RC
AO1
A2O
+24 VAC
+24 VAC
PART NUMBER CROSS REFERENCE TABLE
PART DESCRIPTION ORION AAON
VCM-X WSHP Module R410 OE334-23-WPM-A R88350
VCM-X WSHP Module R410 - 20% Glycol OE334-23-WPM-A20 R99750
VCM-X WSHP Module R410 - 25% Glycol OE334-23-WPM-A25 R88351
VCM-X WSHP Module R410 - 40% Glycol OE334-23-WPM-A40 R99760
VCM-X WSHP Module R22 OE334-23-WPM-22-A R90680
VCM-X WSHP E-BUS Controller OE332-23E-VCMX-WSHP-A V07140
VCM-X WSHP Controller OE332-23-VCMX-WSHP-A R90810
SA E-BUS Controller OE332-23E-SA-A V07160
SA Controller OE332-23-SA-A R96070
SA Expansion Module OE333-23-SA-A R96180
E-BUS Distribution Module OE365-23-EBD R82930
www.aaon.com
WattMaster Controls Inc.
8500 NW River Park Drive · Parkville , MO 64152
Toll Free Phone: 866-918-1100
PH: (816) 505-1100 · FAX: (816) 505-1101 · E-mail: mail@wattmaster.com
Visit our web site at www.orioncontrols.com
WattMaster Form : AA-WHP-T-TGD-01J
Copyright August 2011 WattMaster Controls, Inc.
AAON Manual Part Number: R89000
®
AAON
is a registered trademark of AAON, Inc., Tulsa, OK.
Neither WattMaster Controls, Inc. nor AAON
assumes any responsibility for errors or omissions in this document.
This document is subject to change without notice.
®
Water Source Heat Pump Module
Table of Contents
OVERVIEW ........................................................................................................................................................ 4
Overview ......................................................................................................................................................................................4
Features .......................................................................................................................................................................................4
INSTALLATION AND WIRING ........................................................................................................................... 5
Environmental Requirements .......................................................................................................................................................5
Mounting.......................................................................................................................................................................................5
Dimensions...................................................................................................................................................................................5
Power Supply ...............................................................................................................................................................................5
Important Wiring Considerations ..................................................................................................................................................6
Stand-Alone Wiring ......................................................................................................................................................................6
E-BUS Connection Wiring ............................................................................................................................................................7
Addressing ...................................................................................................................................................................................7
VCM-X Connection Wiring ...........................................................................................................................................................8
START-UP AND COMMISSIONING .................................................................................................................. 10
Unit Confi gurations .....................................................................................................................................................................10
SEQUENCE OF OPERATION ........................................................................................................................... 11
WSHP Module Setpoints ............................................................................................................................................................11
Stand-Alone Input Commands ..................................................................................................................................................12
Input Commands (VCM-X WSHP Connection) ..........................................................................................................................12
Modes of Operation ....................................................................................................................................................................13
TROUBLESHOOTING ...................................................................................................................................... 14
Safety Monitoring .......................................................................................................................................................................14
Temperature Sensor Testing ......................................................................................................................................................15
Pressure Transducer T roubleshooting .......................................................................................... ............................................16
Using LEDs to Verify Operation..................................................................................................................................................17
LED Diagnostics .........................................................................................................................................................................18
Technical Guide
3
Water Source Heat Pump Module
Module Overview
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 W ater Temperature, and W ater
Proof of Flow inputs. It also utilizes a Delay Timer to prevent the compressors 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 Distribution Module (OE365-23-EBD). This allows the W ater 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).
The Water Source Heat Pump Module requires a 24 VAC power connection 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.
www.aaon.com
www.orioncontrols.com
WSHP Protection Module
WSHP Module
Orion No.: OE334-23-WPM
Orion No.: OE334-23-WPM-A
NON-DIGITAL COMPRESSORS
NON-DIGITAL COMP #1 THRU #4
SUCT. PR. SENSOR
+5V
SUCTION
+5V
PRES
GND
+5 TO RED, PRES TO WHT & GND TO BLK
PRES
+5V
GND
PRES
GND
+5 NOT USED, PRES TO P6 & GND TO P5
BIN 1
BIN 1
BIN 2
BIN 2
BIN 3
BIN 3
BIN 4
BIN 4
BIN 5
BIN 5
BIN 6
BIN 6
BIN 7
BIN 7
COM
COM
GND
GND
PRES 1=A1, PRES 2=A2
PRES
PRESSURE
PRES 3=B1, PRES 4=B2
TRANSDUCERS
GND
#1 thru #4
DIGITAL COMRESSORS
DIGITAL COMP #1 THRU #4
+5V
NOT USED
PRES 1=A1, PRES 2=A2
NOT USED
COPELAND CNTRLR P6
PRES 3=B1, PRES 4=B2
COPELAND CNTRLR P5
COMP. A1 ENABLE
COMP. 1 ENABLE
COMP. A2 ENABLE
COMP. 2 ENABLE
COMP. B1 ENABLE
COMP. 3 ENABLE
COMP. 4 ENABLE
COMP. B2 ENABLE
HEAT ENABLE
HEAT ENABLE
H2O POF #1
WATER POFA
H2O POF #2
WATER POF B
COMMON
COMMON
T1
T1
LEAVING WATER TEMP 1
LEAVING WATER TEMP A
T2
T2
LEAVING WATER TEMP 2
LEAVING WATER TEMP B
GROUND
GROUND
WattMaster Label
E-BUS
E-BUS
Connector
Connector
WattMaster Label
#LB102069-A
#LB102069-A
Rev.: 1B
Rev.: 1F
Connector
Connector
RELAY CONTACT RATING
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
IS 1 AMP MAX @ 24 VAC
COMP. A1 ENABLE
COMP. #1 ENABLE
COMP. A2 ENABLE
COMP. #2 ENABLE
COMP. B1 ENABLE
COMP. #3 ENABLE
COMP. B2 ENABLE
COMP. #4 ENABLE
ALARM OUTPUT
RELAY COMMON
RELAY COMMON
AAON No.: R88350
AAON No.: R90680
LW: 36ºF HSP: 100 PSIG
DIGITAL COMP. A1, A2, B1, B2
SYSTEM A - CNTRLR C2
STAGE 1- COMP. A1/B1-
SYSTEM B - CNTRLR C2
STAGE 2 - COMP. A2/B2
CONNECT TO CNTLR C2 TERM.
LED BLINK CODES
LED BLINK CODES
LED NAME STATUS
LED NAME STATUS
OFF MODE 1
OFF MODE 1
COOLING MODE 2
COOLING MODE 2
HEATING MODE 3
HEATING MODE 3
LED NAME ALARM
LED NAME ALARM
LOW SUCTION PRESSURE 1
LOW SUCTION PRESSURE 1
COMPRESSOR LOCKOUT 2
COMPRESSOR LOCKOUT 2
WATER FLOWFAILURE 3
WATER FLOWFAILURE 3
LOW LEAVING WATER TEMP. 4
LOW LEAVING WATER TEMP. 4
LED NAME PRES 1-4
LED NAME PRES 1-4
SENSOR DETECTED ON
SENSOR DETECTED ON
NO SENSOR DETECTED OF F
NO SENSOR DETECTED OF F
LOW SUCTION PRESSURE 1
LOW SUCTION PRESSURE 1
COMPRESSOR LOCKOUT 2
COMPRESSOR LOCKOUT 2
E-BUS
E-BUS
WATTMASTER CONTROLS
R1
R1
R2
R2
R3
R3
R4
R4
R5
RC
RC
AO1
AO1
A2O
A2O
GND
GND
+24 VAC
+24 VAC
Y 102374 REV 0S
MADE IN USA
Figure 1: Water Source Heat Pump Module
4
Technical Guide
Water Source Heat Pump Module
Installation & Wiring
Environmental Requirements
The W ater Source Heat Pump Module needs to be installed in an environment that can maintain a temperature range between -30°F and 150°F
and not exceed 90% RH levels (non-condensing).
Mounting
The W ater 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).
0.18 DIA. TYP. 3 PL.
www.aaon.com
www.orioncontrols.com
WSHP Protection Module
WSHP Module
Orion No.: OE334-23-WPM
Orion No.: OE334-23-WPM-A
NON-DIGITAL COMPRESSORS
NON-DIGITAL COMP#1 THRU #4
SUCT. PR. SENSOR
+5V
SUCTION
+5V
PRES 1=A1, PRES 2=A2
PRES
PRESSURE
PRES
PRES 3=B1, PRES 4=B2
GND
TRANSDUCERS
GND
+5 TO RED, PRES TO WHT & GNDTO BLK
#1 thru #4
5.64
DIGITAL COMRESSORS
DIGITAL COMP#1 THRU #4
+5V
NOT USED
PRES
+5V
PRES 1=A1, PRES 2=A2
NOT USED
GND
PRES
COPELAND CNTRLR P6
PRES 3=B1, PRES 4=B2
GND
COPELAND CNTRLR P5
+5 NOT USED, PRES TO P6 & GND TO P5
BIN 1
BIN 1
COMP.A1 ENABLE
COMP. 1 ENABLE
BIN 2
BIN 2
COMP.A2 ENABLE
COMP. 2 ENABLE
COMP. B1 ENABLE
COMP. 3 ENABLE
BIN 3
BIN 3
COMP. 4 ENABLE
COMP. B2 ENABLE
BIN 4
BIN 4
BIN 5
BIN 5
HEAT ENABLE
HEAT ENABLE
BIN 6
BIN 6
H2O POF #1
WATER POFA
BIN 7
BIN 7
H2O POF #2
WATER POF B
COMMON
COMMON
COM
COM
T1
T1
LEAVING WATER TEMP 1
LEAVING WATER TEMP A
T2
T2
LEAVING WATER TEMP 2
LEAVING WATER TEMP B
GROUND
GROUND
GND
GND
WattMaster Label
WattMaster Label
E-BUS
E-BUS
#LB102069-A
Connector
Connector
#LB102069-A
Rev.: 1B
Rev.: 1F
Power Supply
The Water Source Heat Pump Module requires a 24 VAC power connection with an appropriate VA rating.
If you will be connecting the Water Source Heat Pump Module to the
VCM-X WSHP Controller or SA 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 or SA Controller is con-
fi gured properly for your application. Refer to the VCM-X Controller
T echnical Guide or SA Contr oller T echnical 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.
RELAY CONTACT RATING
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
IS 1 AMP MAX @ 24 VAC
COMP.A1 ENABLE
COMP. #1 ENABLE
COMP.A2 ENABLE
COMP. #2 ENABLE
COMP. B1 ENABLE
COMP. #3 ENABLE
COMP. B2 ENABLE
COMP. #4 ENABLE
ALARM OUTPUT
RELAY COMMON
RELAY COMMON
AAON No.: R88350
AAON No.: R90680
LW: 36ºF HSP: 100 PSIG
DIGITAL COMP. A1, A2, B1, B2
SYSTEM A - CNTRLR C2
STAGE 1- COMP. A1/B1-
SYSTEM B - CNTRLR C2
STAGE 2 - COMP. A2/B2
CONNECT TO CNTLR C2 TERM.
LED BLINK CODES
LED BLINK CODES
LED NAME STATUS
LED NAME STATUS
OFF MODE 1
OFF MODE 1
COOLING MODE 2
COOLING MODE 2
HEATING MODE 3
HEATING MODE 3
LED NAME ALARM
LED NAME ALARM
LOW SUCTIONPRESSURE 1
LOW SUCTIONPRESSURE 1
COMPRESSOR LOCKOUT 2
COMPRESSOR LOCKOUT 2
WATERFLOW FAILURE 3
WATERFLOW FAILURE 3
LOW LEAVING WATER TEMP. 4
LOW LEAVING WATER TEMP. 4
LED NAME PRES 1-4
LED NAME PRES 1-4
SENSOR DETECTED ON
SENSOR DETECTED ON
NO SENSOR DETECTED O FF
NO SENSOR DETECTED O FF
LOW SUCTIONPRESSURE 1
LOW SUCTIONPRESSURE 1
COMPRESSOR LOCKOUT 2
COMPRESSOR LOCKOUT 2
E-BUS
E-BUS
Connector
Connector
2.07
GND
GND
AO1
A2O
AO1
A2O
R1
R1
R2
R2
R3
R3
R4
R4
R5
RC
RC
+24 VAC
+24 VAC
WATTMASTER CONTROLS
0.29
5.05
Note: Height is 1.49 inches.
Figure 2: Water Source Heat Pump Module Dimensions
Technical Guide
0.56
4.14
5.83
5
Water Source Heat Pump Module
Installation & Wiring
Important Wiring Considerations
Please read carefully and apply the following information when wiring
the Water Source Heat Pump Module:
1. To operate the Water Source Heat Pump Module in StandAlone 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.
Water Source Heat Pump
RD
WH
COMPRESSOR A1 SUCTION
PRESSURE TRANSDUCER
COMPRESSOR A2 SUCTION
PRESSURE TRANSDUCER
COMPRESSOR B1 SUCTION
PRESSURE TRANSDUCER
COMPRESSOR B2 SUCTION
PRESSURE TRANSDUCER
COMPRESSOR A1 ENABLE CONTACT
COMPRESSOR A2 ENABLE CONTACT
COMPRESSOR B1 ENABLE CONTACT
COMPRESSOR B2 ENABLE CONTACT
WATER POF SYSTEMA CONTACT
WATER POF SYSTEM B CONTACT
BK
RD
WH
BK
RD
WH
BK
RD
WH
BK
HEAT ENABLE CONTACT
BIN1
BIN2
BIN3
BIN4
BIN5
BIN6
BIN7
COM
T1
T2
GND
WSHP Protection Module
WSHP Module
Orion No.: OE334-23-WPM
Orion No.: OE334-23-WPM-A
NON-DIGITALCOMPRESSORS
NON-DIGITALCOMP #1 THRU #4
+5V
+5V
PRES
PRES
GND
GND
+5TO RED, PRES TO WHT & GND TO BLK
DIGITALCOMRESSORS
DIGITALCOMP #1 THRU #4
+5V
PRES
+5V
NOT USED
GND
PRES
COPELAND CNTRLR P6
GND
COPELAND CNTRLR P5
+5 NOTUSED, PRES TO P6 & GND TO P5
BIN 1
BIN 1
BIN 2
BIN 2
BIN 3
BIN 3
BIN 4
BIN 4
BIN 5
BIN 5
BIN 6
BIN 6
BIN 7
BIN 7
COM
COM
T1
T1
LEAVING WATERTEMP 1
LEAVING WATERTEMP A
T2
T2
LEAVING WATERTEMP 2
LEAVING WATERTEMP B
GROUND
GROUND
GND
GND
E-BUS
E-BUS
Connector
Connector
4. Be sure all modular wiring harness connectors are seated
fi rmly in their respective modular connectors on the circuit
board.
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
To operate the Water Source Heat Pump Module as Stand Alone, connect the Module to a 24 VAC power connection with an appropriate VA
rating. See Figure 3 for wiring.
OE334-23-WPM
Module
www.aaon.com
www.orioncontrols.com
SUCT. PR. SENSOR
SUCTION
PRES 1=A1, PRES 2=A2
PRESSURE
PRES 3=B1, PRES 4=B2
TRANSDUCERS
#1 thru #4
NOT USED
PRES 1=A1, PRES 2=A2
PRES 3=B1, PRES 4=B2
COMP.A1 ENABLE
COMP. 1 ENABLE
COMP.A2 ENABLE
COMP. 2 ENABLE
COMP. B1 ENABLE
COMP. 3 ENABLE
COMP. 4 ENABLE
COMP. B2 ENABLE
HEATENABLE
HEATENABLE
H2O POF #1
WATER POFA
H2O POF #2
WATER POF B
COMMON
COMMON
WattMaster Label
WattMaster Label
#LB102069-A
#LB102069-A
Rev.: 1B
Rev.: 1F
RELAYCONTACT RATING
RELAYCONTACT RATING
IS 1 AMPMAX @ 24 VAC
IS 1 AMPMAX @ 24 VAC
COMP.A1 ENABLE
COMP. #1 ENABLE
COMP.A2 ENABLE
COMP. #2 ENABLE
COMP. B1 ENABLE
COMP. #3 ENABLE
COMP. B2 ENABLE
COMP. #4 ENABLE
ALARM OUTPUT
RELAYCOMMON
RELAYCOMMON
AAON No.: R88350
AAON No.: R90680
LW: 36ºF HSP: 100 PSIG
DIGITALCOMP. A1, A2, B1, B2
SYSTEMA - CNTRLR C2
STAGE 1- COMP.A1/B1-
SYSTEM B - CNTRLR C2
STAGE 2 - COMP.A2/B2
CONNECTTO CNTLR C2 TERM.
LED BLINKCODES
LED BLINKCODES
LED NAME STATUS
LED NAME STATUS
OFFMODE 1
OFFMODE 1
COOLINGMO DE 2
COOLINGMO DE 2
HEATINGMO DE 3
HEATINGMO DE 3
LED NAME ALARM
LED NAME ALARM
LOWSUCTION PRESSURE 1
LOWSUCTION PRESSURE 1
COMPRESSORLOCKOUT 2
COMPRESSORLOCKOUT 2
WATERFLOW FAILURE 3
WATERFLOW FAILURE 3
LOWLEAVING WATER TEMP. 4
LOWLEAVING WATER TEMP. 4
LED NAME PRES1-4
LED NAME PRES1-4
SENSORD ETECTED ON
SENSORD ETECTED ON
NOSENSOR D ETECTED OFF
NOSENSOR D ETECTED OFF
LOWSUCTION PRESSURE 1
LOWSUCTION PRESSURE 1
COMPRESSORLOCKOUT 2
COMPRESSORLOCKOUT 2
E-BUS
E-BUS
Connector
Connector
R
AO1
AO1
A2O
A2O
GND
GND
GND
24 VAC
E
NOTE: NORMALLY
ALL RELAY OUTPUTS ARE
OPEN AND RATED FOR 24 VAC POWER ONLY
- 1 AMP MAXIMUM LOAD
WATTMASTER CONTROLS
R1
R1
R2
R2
R3
R3
R4
R4
R5
RC
RC
R1
R2
R3
R4
R5
COMM
COMPRESSOR A1 ENABLE
COMPRESSOR A2 ENABLE
COMPRESSOR B1 ENABLE
COMPRESSOR B2 ENABLE
ALARM OUTPUT
HVAC UNIT CONNECTIONS
NOTE:
OUTPUTS ARE NOT USED ON
STAND ALONE APPLICATIONS
+24 VAC
+24 VAC
DIP SWITCH
NOT USED FOR
STAND ALONE
APPLICATION
LEAVING WATER TEMPERATURE
FOR SYSTEM A
LEAVING WATER TEMPERATURE
FOR SYSTEM B
Figure 3: Water Source Heat Pump Module as Stand-Alone
6
Technical Guide
Loading...