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-C-TGD-01J
Copyright December 2011 WattMaster Controls, Inc.
AAON
COIL
®
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.
Features .......................................................................................................................................................................................4
INSTALLATION AND WIRING ........................................................................................................................... 5
Power Supply ...............................................................................................................................................................................5
Important Wiring Considerations ..................................................................................................................................................6
START-UP AND COMMISSIONING .................................................................................................................. 10
Unit Confi gurations .....................................................................................................................................................................10
SEQUENCE OF OPERATION ........................................................................................................................... 11
Modes of Operation ....................................................................................................................................................................13
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 Water Temperature, and
W ater Proof of Flow inputs. It also utilizes a Delay T imer to prevent the
compressors from turning on at the same time.
There is one water-only version of the Water Source Heat Pump Module—the OE334-23-WPM-C which uses R-410A refrigerant.
There are also two 410-A glycol versions—the OE334-23-WPM-C20
which uses 20% glycol and the OE334-23-WPM-C40 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-VCMXWSHP-C) using the E-BUS Distribution Module (OE365-23-EBD-C).
This allows the W ater Source Heat Pump Module to receive control data
and alarms from the VCM-X WSHP Controller.
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 using the E-BUS
Distribution Module to E-BUS interface
Capable of controlling digital compressors when
connected to the VCM-X WSHP 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 Module
Orion No.: OE334-23-WPM-C
NON-DIGITAL COMPRESSORS
SUCT. PR. SENSOR
+5V
PRES
PRES
PRES 1=A1, PRES 2=N/A
PRES 3=B1, PRES 4=N/A
GND
+5 TO RED, PRES TO WHT & GND TO BLK
DIGITAL COMRESSORS
+5V
NOT USED
PRES 1=A1, PRES 2=N/A
GND
PRES 3=B1, PRES 4=N/A
+5 NOT USED, PRES TO P6 & GND TO P5
BIN 1
COMP. A1 ENABLE
BIN 2
COMP. A2 ENABLE
COMP. B1 ENABLE
BIN 3
COMP. B2 ENABLE
BIN 4
BIN 5
COOL ENABLE
BIN 6
WATER POF
BIN 7
NOT USED
COMMON
COM
T1
LEAVING WATER TEMP
T2
NOT USED
GROUND
GND
Connector
E-BUS
WattMaster Label
#LB102069-B
Rev.: 1E
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP. A1 ENABLE
COMP. A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
ALARM OUTPUT
RELAY COMMON
AAON Coil No.: 30318
DIGITAL COMP. A1 & B1
CIRCUIT A -COMP.A1
CIRCUIT B - COMP. B1
CONNECT TO CNTLR C2 TERM.
LED BLINK CODES
LED NAMESTATUS
OFF MODE1
COOLING MODE2
HEATING MODE3
LED NAMEALARM
LOW SUCTION PRESSURE1
COMPRESSOR LOCKOUT2
WATER FLOW FAILURE3
LOW LEAVING WATER TEMP.4
LED NAMEPRES 1-4
SENSOR DETECTEDON
NO SENSOR DETECTEDOFF
LOW SUCTION PRESSURE1
COMPRESSOR LOCKOUT2
E-BUS
Connector
AO1
A2O
GND
R1
R2
R3
R4
R5
RC
+24 VAC
Y 102374 REV 0S
WATTMASTER CONTROLS
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 Module
Orion No.: OE334-23-WPM-C
NON-DIGITAL COMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=N/A
PRES
PRES 3=B1, PRES 4=N/A
GND
+5 TO RED, PRES TO WHT & GNDTO BLK
5.64
DIGITAL COMRESSORS
+5V
NOT USED
PRES
PRES 1=A1, PRES 2=N/A
GND
PRES 3=B1, PRES 4=N/A
+5 NOT USED, PRES TO P6 & GND TO P5
BIN 1
COMP.A1 ENABLE
BIN 2
COMP.A2 ENABLE
COMP. B1 ENABLE
BIN 3
COMP. B2 ENABLE
BIN 4
BIN 5
COOL ENABLE
WATER POF
BIN 6
BIN 7
NOT USED
COMMON
COM
T1
LEAVING WATER TEMP
T2
NOT USED
GROUND
GND
WattMaster Label
E-BUS
#LB102069-B
Connector
Rev.: 1E
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, 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.
RELAY CONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP.A1 ENABLE
COMP.A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
ALARM OUTPUT
RELAY COMMON
AAON Coil No.: 30318
DIGITAL COMP. A1 & B1
CIRCUIT A -COMP. A1
CIRCUIT B - COMP. B1
CONNECT TO CNTLR C2 TERM.
LED BLINK CODES
LED NAMESTATUS
OFF MODE1
COOLING MODE2
HEATING MODE3
LED NAMEALARM
LOW SUCTION PRESSURE1
COMPRESSOR LOCKOUT2
WATER FLOW FAILURE3
LOW LEAVING WATER TEMP.4
LED NAMEPRES 1-4
SENSOR DETECTEDON
NO SENSOR DETECTEDOFF
LOW SUCTION PRESSURE1
COMPRESSOR LOCKOUT2
E-BUS
Connector
2.07
GND
AO1
A2O
R1
R2
R3
R4
R5
RC
+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.
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.
WattMaster Label
#LB102069-B
Rev.: 1E
Module
COMP.A1 ENABLE
COMP.A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
AAON Coil No.: 30318
LED NAMESTATUS
OFFMODE1
COOLINGMODE2
HEATINGMODE3
LED NAMEALARM
LOWSUCTION PRESSUR E1
COMPRESSORLOCKOUT2
WATERFLOW FAILURE3
LOWLEAVING WATER TEMP. 4
LED NAMEPRES 1-4
SENSORDETECTEDON
NOSENSOR DET ECTEDOFF
LOWSUCTION PRESSUR E1
COMPRESSORLOCKOUT2
E-BUS
Connector
R
RELAYCONTACT RATING
IS 1AMP MAX @ 24 VAC
ALARM OUTPUT
RELAYCOMMON
DIGITALCOMP. A1 & B1
CIRCUITA -COMP.A1
CIRCUIT B - COMP. B1
CONNECTTO CNTLR C2 TERM.
LED BLINKCODES
GND
E
R1
R2
R3
R4
R5
RC
AO1
A2O
GND
+24 VAC
24 VAC
WATTMASTER CONTROLS
NOTE:NORMALLY
ALL RELAY OUTPUTS ARE
OPEN AND RATED FOR 24 VAC POWER ONLY
- 1 AMP MAXIMUM LOAD
R1
R2
R3
R4
R5
COMM
COMPRESSOR A1 ENABLE OUTPUT
COMPRESSOR A2 ENABLE OUTPUT
COMPRESSOR B1 ENABLE OUTPUT
COMPRESSOR B2 ENABLE OUTPUT
ALARM OUTPUT
HVAC UNIT CONNECTIONS
NOTE:
OUTPUTS ARE NOT USED ON
STAND ALONE APPLICATIONS
DIP SWITCH
NOT USED FOR
STAND ALONE
APPLICATION
LEAVING WATER TEMPERATURE
Figure 3: Water Source Heat Pump Module as Stand-Alone
6
Technical Guide
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