Mounting and Dimensions ............................................................................................................................................................4
Important Wiring Considerations ..................................................................................................................................................5
Stand-Alone Wiring for Single Water Circuit ................................................................................................................................5
Stand-Alone Wiring for Dual Water Circuit ...................................................................................................................................6
VCM-X WSHP or SA Controller to WSHP-X Module Wiring Diagram Single Water Circuit .........................................................8
VCM-X WSHP E-BUS or SA E-BUS Controller to WSHP-X Module Wiring Single Water Circuit..............................................10
VCM-X WSHP or SA Controller to WSHP-X Module Wiring Diagram Dual Water Circuit..........................................................12
VCM-X WSHP E-BUS or SA E-BUS Controller to WSHP-X Module Wiring Dual Water Circuit ................................................14
START-UP AND COMMISSIONING .................................................................................................................. 16
Unit Confi gurations .....................................................................................................................................................................16
SEQUENCE OF OPERATION ........................................................................................................................... 17
Input Commands (VCM-X WSHP or SA Connection) ................................................................................................................18
Modes of Operation ....................................................................................................................................................................19
Safety Monitoring for Single Water Circuit .................................................................................................................................26
Safety Monitoring for Dual Water Circuit ....................................................................................................................................27
Temperature Sensor Testing ......................................................................................................................................................28
Pressure Transducer T roubleshooting .......................................................................................... ............................................29
Using LEDs to Verify Operation..................................................................................................................................................30
LED Diagnostics .........................................................................................................................................................................31
PART NUMBER CROSS REFERENCE TABLE
PART DESCRIPTIONORIONAAON
WSHP-X ModuleOE334-26-WSHPX-AV18330
VCM-X WSHP E-BUS ControllerOE332-23E-VCMX-WSHP-AV07140
VCM-X WSHP ControllerOE332-23-VCMX-WSHP-AR90810
SA E-BUS ControllerOE332-23E-SA-AV07160
SA ControllerOE332-23-SA-AR96070
E-BUS Distribution ModuleOE365-23-EBDR82930
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-WSHPX-FIELD-TGD-01C
Copyright December 2013 WattMaster Controls, Inc.
AAON Manual Part Number: V23560
®
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.
®
WSHP-X Module
Module Overview
Overview
The OE334-26-WSHPX-A Water Source Heat Pump X (WSHP-X)
Module monitors the compressors on an AAON
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 compressors from turning on
at the same time.
The WSHP-X Module’s water circuit con fi guration can be either single
or dual. There are eight R410-A glycol con fi gurations for the WSHP-X
Module—0%-40% in increments of 5%. There are two refrigerant selections—R410-A refrigerant and R-22 refrigerant. If R-22 refrigerant is
selected, the glycol will automatically default to 0%.
The WSHP-X Module can be used stand-alone. It can also be connected
to the VCM-X WSHP Controller or the SA Controller using the E-BUS
Distribution Module or the module can be directly connected to the
VCM-X WSHP E-BUS Controller or SA E-BUS Controller, allowing
the Module to receive setpoints from the Controllers. See chart on page 2 for part numbers. Please note: The SA series of controllers only work
with the R410-A dual water circuit confi gurations.
The WSHP-X Module requires a 24 VAC power connection with an
appropriate VA rating.
NOTE: The WSHP-X Module is factory set for R410-A and 0%
glycol.
®
Water Source Heat
Features
The WSHP-X 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
Can be directly connected to a VCM-X WSHP E-BUS
Controller or SA E-BUS Controller
Capable of controlling digital compressors when
connected to a VCM-X WSHP Series Controller or
SA Series 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
Contains a 2x8 LCD character display and 4 buttons
that allow for status display, setpoint changes, and
confi guration changes
NOTE: The WSHP-X Module contains no user-serviceable parts.
Contact qualifi ed technical personnel if your Module is
not operating correctly.
ALARM
UP
M
ENTER
DOWN
GND
+24 VAC
- HEAT ENABLE
- WATER POF
- WATER POF
- COMMON
CONNECT
MENU
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
DIGITAL COMP. A1, A2, B1, B2
STAGE 1- COMP. A1/B1STAGE 2 - COMP. A2/B2
CONNECT TO CNTLR C2 TERM.
E-BUS
www.aaon.com
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OE334-26-WSHPX-A WSHP-X MODULE AAON NO.: V18330
NON-DIGITAL COMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+5 TO RED, PRES TO WHT & GND TO BLK
DIGITAL COMRESSORS
+5V
NOT USED
PRES
PRES 1=A1, PRES 2=A2
GND
PRES 3=B1, PRES 4=B2
+5 NOT USED, PRES TO P6 & GND TO P5
BIN 1
- COMP.A1 EN.
- COMP.A2 EN.
BIN 2
BIN 3
- COMP. B1 EN.
- COMP. B2 EN.
BIN 4
T1
- LEAVING WATER TEMP A
T2
- LEAVING WATER TEMP B
- GROUND
GND
WattMaster Label
#SW000054
Rev.: 1A
BIN 5
BIN 6
BIN 7
COM
E-BUS
CONNECT
WATTMASTER CONTROLS
R1
R2
R3
R4
R5
RC
AO1
A2O
Y 102374 REV 0S
MADE IN USA
Figure 1: Water Source Heat Pump X Module
Technical Guide
3
WSHP-X Module
Installation & Wiring
Environmental Requirements
The WSHP-X 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 WSHP-X 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 (in inches).
0.18 DIA. TYP. 3 PL.
Power Supply
The WSHP-X Module requires a 24 VAC power connection with an
appropriate VA rating.
If you will be connecting the WSHP-X Module to a VCM-X WSHP
Series Controller or SA Series 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 Controller is confi gured properly for your applica-
tion. Refer to the VCM-X Controller Technical Guide, VCM-X Modular
E-BUS Controller Technical Guide, SA Controller Technical Guide, or
SA E-BUS 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.
2.07
0.29
5.64
ALARM
UP
M
DOWN
GND
ENTER
+24 VAC
- HEAT ENABLE
- WATER POF
- WATER POF
- COMMON
MENU
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
DIGITAL COMP. A1,A2, B1, B2
STAGE 1- COMP. A1/B1STAGE 2 - COMP. A2/B2
CONNECT TO CNTLR C2 TERM.
E-BUS
CONNECT
www.aaon.com
www.orioncontrols.com
OE334-26-WSHPX-A WSHP-X MODULE AAON NO.: V18330
NON-DIGITAL COMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+5 TO RED, PRES TO WHT & GNDTO BLK
DIGITAL COMRESSORS
+5V
NOT USED
PRES
PRES 1=A1, PRES 2=A2
GND
PRES 3=B1, PRES 4=B2
+5 NOT USED, PRES TO P6 & GND TO P5
BIN 1
- COMP.A1 EN.
- COMP.A2 EN.
BIN 2
BIN 3
- COMP. B1 EN.
- COMP. B2 EN.
BIN 4
T1
- LEAVING WATER TEMP A
T2
- LEAVING WATER TEMP B
- GROUND
GND
WattMaster Label
#SW000054
Rev.: 1A
BIN 5
BIN 6
BIN 7
COM
E-BUS
CONNECT
4.14
5.83
WATTMASTER CONTROLS
R1
R2
R3
R4
R5
RC
AO1
A2O
0.56
5.05
Note: Height is 1.49 inches.
Figure 2: Water Source Heat Pump X Module Dimensions
4
Technical Guide
WSHP-X Module
Installation & Wiring
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.
WATER POF SYSTEMA CONTACT
WATER POF SYSTEM B CONTACT
RD
WH
BK
HEAT ENABLE CONTACT
SIG 1
GND
SIG 1
GND
BIN1
BIN2
BIN3
BIN4
BIN5
BIN6
BIN7
COM
GND
+V
ALARM
+V
T1
www.aaon.com
www.orioncontrols.com
OE334-26-WSHPX-A WSHP-X MODULE AAON NO.: V18330
NON-DIGITALCOMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+5 TO RED, PRESTO WHT & GND TO BLK
DIGITALCOMRESSORS
+5V
NOT USED
PRES
PRES 1=A1, PRES 2=A2
GND
PRES 3=B1, PRES 4=B2
+5 NOT USED, PRES TO P6 & GNDTO P5
BIN 1
- COMP.A1 EN.
BIN 5
BIN 6
BIN 7
COM
E-BUS
CONNECT
- HEATENABLE
- WATER POF
- WATER POF
- COMMON
- COMP.A2 EN.
BIN 2
BIN 3
- COMP. B1 EN.
- COMP. B2 EN.
BIN 4
T1
- LEAVING WATERTEMP A
T2
- LEAVING WATERTEMP B
- GROUND
GND
WattMaster Label
#SW000054
Rev.: 1A
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.
NOTE:NORMALLY
ALL RELAY OUTPUTS ARE
OPEN AND RATED FOR 24 VAC POWER ONLY
- 1 AMP MAXIMUM LOAD
WATTMASTER CONTROLS
UP
M
MENU
DOWN
RELAYCONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP.A1 ENABLE
COMP.A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
ALARM OUTPUT
RELAYCOMMON
DIGITALCOMP. A1, A2, B1, B2
STAGE 1- COMP.A1/B1STAGE 2 - COMP.A2/B2
CONNECTTO CNTLR C2 TERM.
GND
E-BUS
CONNECT
+24 VAC
ENTER
R1
R2
R3
R4
R5
COMM
R1
R2
R3
R4
R5
RC
AO1
A2O
NOTE:
OUTPUTS ARE NOT USED ON
STAND ALONE APPLICATIONS
COMPRESSOR A1 ENABLE OUTPUT
COMPRESSOR A2 ENABLE OUTPUT
COMPRESSOR B1 ENABLE OUTPUT
COMPRESSOR B2 ENABLE OUTPUT
ALARM OUTPUT
HVAC UNIT CONNECTIONS
GND
24 VAC
E
R
LEAVING WATER TEMPERATURE
Figure 3: Water Source Heat Pump X Module as Stand-Alone for Single Water Circuit
Technical Guide
5
WSHP-X Module
Installation & Wiring
Stand-Alone Wiring Dual 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 4 for wiring.
HEAT ENABLE CONTACT
WATER POF SYSTEMA CONTACT
WATER POF SYSTEM B CONTACT
WH
BK
RD
WH
BK
RD
WH
BK
RD
WH
BK
SIG 1
GND
SIG 2
GND
SIG 1
GND
SIG 2
GND
BIN1
BIN2
BIN3
BIN4
BIN5
BIN6
BIN7
COM
GND
+V
+V
+V
+V
T1
T2
ALARM
www.aaon.com
www.orioncontrols.com
OE334-26-WSHPX-A WSHP-X MODULE AAON NO.: V18330
NON-DIGITALCOMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+5 TO RED, PRESTO WHT & GND TO BLK
DIGITALCOMRESSORS
+5V
NOT USED
PRES
PRES 1=A1, PRES 2=A2
GND
PRES 3=B1, PRES 4=B2
+5 NOT USED, PRES TO P6 & GNDTO P5
BIN 1
- COMP.A1 EN.
- COMP.A2 EN.
BIN 2
BIN 3
- COMP. B1 EN.
- COMP. B2 EN.
BIN 4
T1
- LEAVING WATERTEMP A
T2
- LEAVING WATERTEMP B
- GROUND
GND
WattMaster Label
#SW000054
Rev.: 1A
Module
BIN 5
- HEATENABLE
- WATER POF
BIN 6
BIN 7
- WATER POF
COM
- COMMON
E-BUS
CONNECT
UP
M
MENU
DOWN
RELAYCONTACT RATING
IS 1 AMP MAX @ 24 VAC
COMP.A1 ENABLE
COMP.A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
ALARM OUTPUT
RELAYCOMMON
DIGITALCOMP. A1, A2, B1, B2
STAGE 1- COMP.A1/B1STAGE 2 - COMP.A2/B2
CONNECT TO CNTLR C2TERM.
GND
E-BUS
CONNECT
NOTE:NORMALLY
ALL RELAY OUTPUTS ARE
OPEN AND RATED FOR 24 VAC POWER ONLY
- 1 AMP MAXIMUM LOAD
WATTMASTER CONTROLS
ENTER
R1
R2
R3
R4
R5
COMM
COMPRESSOR A1 ENABLE
COMPRESSOR A2 ENABLE
COMPRESSOR B1 ENABLE
COMPRESSOR B2 ENABLE
ALARM OUTPUT
HVAC UNIT CONNECTIONS
R1
R2
R3
R4
R5
RC
AO1
A2O
+24 VAC
NOTE:
OUTPUTS ARE NOT USED ON
STAND ALONE APPLICATIONS
GND
24 VAC
E
R
LEAVING WATER
TEMPERATURE
FOR SYSTEM A
LEAVING WATER
TEMPERATURE
FOR SYSTEM B
Figure 4: Water Source Heat Pump X Module as Stand-Alone for Dual Water Circuit
6
Technical Guide
WSHP-X Module
Installation & Wiring
E-BUS to WSHP-X Module Wiring
The WSHP-X Module connects to the E-BUS Distribution Module using a modular HSSC cable. The WSHP-X Module requires a 24 VAC
power connection with an appropriate VA rating.
The E-BUS Distribution Module connects to the VCM-X WSHP Controller, VCM-X Expansion Module, SA Controller (Dual W ater Circuit
only), SA Expansion Module (Dual Water Circuit only), or 12 Relay
Expansion Module using the I
Figure 7 on page 12 for wiring.
Any E-BUS Module can be connected to each of the four E-BUS Distribution Module’s output ports or can be daisy-chained together using
HSSC cables.
If using a spliced terminal connection for longer runs, one module can be
connected to the E-BUS Distribution Module and any additional modules
would be daisy-chained to the fi rst module. For more information, refer
to the E-BUS Distribution Module Technical Guide.
2
C port. See Figure 5 on page 8 and
VCM-X WSHP E-BUS or SA E-BUS
Controller to WSHP-X Module Wiring
The WSHP-X Module connects to the E-BUS Controller using a modular
HSSC cable. The WSHP-X Module requires a 24 VAC power connection
with an appropriate VA rating. See Figure 6 on page 10 and Figure 8 on page 14 for wiring.
WARNING: Be sure all controllers and modules are
powered down before connecting or
disconnecting HSSC cables.
Addressing
When the WSHP-X Module is connected to the E-BUS Distribution
Module, set the WSHP-X Module’s address to 1. Set the address consecutively for each WSHP-X Module you are using.
NOTE: Address zero defaults to address 1.
Any E-BUS Module can be connected to the E-BUS Controller’s E-BUS
port or can be daisy-chained together using HSSC cables.
NOTE: Contact Factory for the correct HSSC cable length
for your application. Cables are available in 1/4, 1/2,
1, 2, 3, 4, and 5 Meter lengths and 100 and 150 Foot
lengths.
Technical Guide
7
WSHP-X Module
Installation & Wiring
VCM-X WSHP to WSHP-X Module
Wiring for Single Water Circuit
The VCM-X WSHP Controller or SA Controller communicates with the
WSHP-X Module using the E-BUS Distribution Module. See Figure 5 for wiring details.
For Stand Alone Applications,
Connect To System Manager.
For Network Applications
Connect To Next Controller
And/Or MiniLink PD On Local Loop.
Local Loop
RS-485
9600 Baud
All Comm Loop Wiring Is
Straight Thru
T to T, R to R & SHLD to SHLD
See Individual Component
Wiring Diagrams For
Detailed Wiring Of Analog
Inputs And Outputs
AI1 SETAI2 SET AI3 SET
AI4 SET AI5 SETAI7 SET
AI1
AI2
AI3
AI4
AI5
AI7
(OE332-23-WSHP-C)
VCM-X WSHP Controller
AI1 SET AI2 SET AI3 SET
AI4 SET AI5 SET AI7 SET
NOTE: When using the WSHP-X Module, all compressors
will be wired from the WSHP-X Module, not the
VCM-X WSHP Controller
Note:
All Relay Outputs Are Normally Open And Rated
For 24 VAC Power Only.
1 Amp Maximum Load.
R - 24VAC
G - Fan ON/OFF Only
Relay Output Contacts
R2 Through R5 May Be User Configured For The
Following:
1 - Heating Stages
2 - See Note 1 Below
3 - Warm-up Mode Command (VAV Boxes)
4 - Reversing Valve (Air To Air Heat Pumps)
5 - Reheat Control (Dehumidification)
6 - Exhaust Fan Interlock
7 - Preheater For Low Ambient Protection
8 - Alarm
9 - Override
10 - Occupied
11 - OA Damper
12 - Heat Wheel
Note:
1.) When Using The WSHP-X Module, All
Compressors Will Be Wired From The Module, Not
The VCM-X Controller.
2.) A Total Of 20 Relays Are Available ByAdding Relay
Expansion Modules. All Expansion Module Relay
Outputs Are User-Configurable As ListedAbove.
GND
24VAC
Size Transformer For Correct
Total Load.
VCM-X Controller = 8 VA
Line Voltage
Connect To
E-BUS
Distribution
Module
GND
24 VAC
Jumpers
Splice If Required
OE271
Static Pressure
Transducer
Connect FRP Tubing To High Pressure
Port (Bottom Tube) And Route To Static
Pressure Pickup Probe Located In Unit
Discharge. Leave Port Marked “Lo” Open
ToAtmosphere
Connect To E-BUS Distribution Module or
Expansion Module(s)
(When Used)
Warning:
24 VAC Must Be Connected So That All Ground
Wires Remain Common. Failure To Do So Will
Result In Damage To The Controllers.
Connect To Digital Room Sensor And/Or
Digital CO Sensor
2
Figure 5: VCM-X WSHP Controller to WSHP-X Module Wiring Diagram for Single Water Circuit
8
Technical Guide
Line Voltage
OE365-23-EBD E-BUS
Distribution Module
YS102308
REV 1
I2CTO COMM
DIST. BOARD
OUTPUT
+COMM
SHLD
-COMM
GND
+VDC
INPUT
+COMM
SHLD
-COMM
GND
24VAC
GND
PWR
WSHP-X Module
Installation & Wiring
CIRCUIT B
SUCTION PRESSURE TRANSDUCER
BK
WH
RD
CIRCUIT A
SUCTION PRESSURE TRANSDUCER
BK
WH
RD
NOTE:
OE334-26-WSHPX-A Water Source
Heat Pump X Module
Y 102374 REV 0S
ENTER
GND
R1
R2
R3
R4
R5
RC
AO1
A2O
24 VAC
WATTMASTER CONTROLS
MADE IN USA
ALARM
UP
M
BIN 5
BIN 6
BIN 7
COM
E-BUS
CONNECT
- HEATENABLE
- WATER POF
- WATER POF
- COMMON
MENU
DOWN
RELAYCONTACT RATING
IS 1 AMPMAX @ 24 VAC
COMP.A1 ENABLE
COMP.A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
ALARM OUTPUT
RELAYCOMMON
DIGITALCOMP. A1, A2, B1, B2
STAGE 1- COMP.A1/B1STAGE 2 - COMP.A2/B2
CONNECTTO CNTLR C2 TERM.
GND
E-BUS
CONNECT
+24 VAC
www.aaon.com
www.orioncontrols.com
OE334-26-WSHPX-A WSHP-X MODULE AAON NO.: V18330
NON-DIGITALCOMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+5TO RED, PRES TO WHT & GND TO BLK
DIGITALCOMRESSORS
+5V
NOT USED
PRES
PRES 1=A1, PRES 2=A2
GND
PRES 3=B1, PRES 4=B2
+5 NOTUSED, PRES TO P6 & GND TO P5
BIN 1
- COMP.A1 EN.
- COMP.A2 EN.
BIN 2
BIN 3
WATER POF
CONTACT
BIN6
COM
T1
485 DRV
GND
- COMP. B1 EN.
- COMP. B2 EN.
BIN 4
T1
- LEAVING WATERTEMP A
T2
- LEAVING WATERTEMP B
- GROUND
GND
WattMaster Label
#SW000054
Rev.: 1A
ALL RELAY OUTPUTS
NORMALLY OPEN AND
ARE
RATED FOR 24 VAC POWER
ONLY
R1
R2
R3
R4
R5
COMM
AO1
DIGITAL STAGE 1 (1.5-5V)
AO2
DIGITAL STAGE 2 (1.5-5V)
HVAC UNIT
CONNECTIONS
COMP.A1 ENABLE
COMP.A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
ALARM OUTPUT
WARNING!!
Observe Polarity! All boards must be
wired with GND-to-GND and 24 VACto-24 VAC. Failure to observe polarity
could result in damage to the boards.
Modular Cable
Connect To
VCM-X WSHP Controller
HSSC Cable
HSSC Cable
Connect To Other
WattMaster-Approved
E-BUS Expansion Module(s)
E
LEAVING WATER TEMPERATURE
Figure 5, cont.: VCM-X WSHP Controller to WSHP-X Module Wiring Diagram for Single Water Circuit
Technical Guide
24 VAC Transformer
3 VA Minimum
WARNING!!
Observe Polarity! All
boards must be wired
with GND-to-GND and
24 VAC-to-24 VAC.
Failure to observe
polarity could result in
damage to the boards.
9
WSHP-X Module
Installation & Wiring
VCM-X WSHP E-BUS or SA E-BUS
Controller to WSHP-X Module Wiring
for Single Water Circuit
The WSHP-X Module connects to the E-BUS Controller using a modular
HSSC cable. The WSHP-X Module requires a 24 VAC power connection
with an appropriate VA rating. See Figure 6 below for wiring.
OE334-26-WSHPX-A Water Source
+V
CIRCUIT A
SUCTION PRESSURE
TRANSDUCER
CIRCUIT B
SUCTION PRESSURE
TRANSDUCER
WARNING!! Observe Polarity! All
boards must be wired with GNDto-GND and 24 VAC-to-24 VAC.
Failure to observe polarity could
result in damage to the boards.
Connect To Other
WattMaster-Approved
E-BUS Expansion Module(s)
WATER POF
WH
WH
RD
SIG 1
BK
GND
+V
RD
SIG 1
BK
GND
BIN6
COM
T1
GND
HSSC Cable
Any E-BUS Module can be connected to the E-BUS Controller’s E-BUS
port or can be daisy-chained together using HSSC cables.
NOTE: When using the WSHP-X Module, all compressors
will be wired from the WSHP-X Module, not the
VCM-X WSHP E-BUS Controller.
NOTE:
ALL RELAY OUTPUTS
NORMALLY OPEN AND
Heat Pump X Module
ALARM
UP
M
ENTER
DOWN
RELAYCONTACT RATING
IS 1 AMP MAX @ 24 VAC
ALARM OUTPUT
CONNECTTO CNTLR C2 TERM.
GND
+24 VAC
GND
E
BIN 5
BIN 6
BIN 7
COM
E-BUS
CONNECT
- HEATENABLE
- WATER POF
- WATER POF
- COMMON
MENU
COMP.A1 ENABLE
COMP.A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
RELAYCOMMON
DIGITALCOMP. A1, A2, B1, B2
STAGE 1- COMP.A1/B1STAGE 2 - COMP.A2/B2
E-BUS
CONNECT
www.aaon.com
www.orioncontrols.com
OE334-26-WSHPX-A WSHP-X MODULE AAON NO.: V18330
NON-DIGITALCOMPRESSORS
SUCT. PR. SENSOR
+5V
PRES 1=A1, PRES 2=A2
PRES
PRES 3=B1, PRES 4=B2
GND
+5 TO RED, PRESTO WHT & GND TO BLK
DIGITALCOMRESSORS
+5V
NOT USED
PRES
PRES 1=A1, PRES 2=A2
GND
PRES 3=B1, PRES 4=B2
+5 NOT USED, PRESTO P6 & GND TO P5
BIN 1
- COMP.A1 EN.
- COMP.A2 EN.
BIN 2
BIN 3
- COMP. B1 EN.
- COMP. B2 EN.
BIN 4
T1
- LEAVING WATERTEMP A
T2
- LEAVING WATERTEMP B
- GROUND
GND
WattMaster Label
#SW000054
Rev.: 1A
R1
R2
R3
R4
R5
RC
AO1
A2O
24 VAC
Y 102374 REV 0S
WATTMASTER CONTROLS
MADE IN USA
ARE
RATED FOR 24 VAC POWER
ONLY
HVAC UNIT
CONNECTIONS
R1
R2
R3
R4
R5
COMM
AO1
AO2
COMP. A1 ENABLE
COMP. A2 ENABLE
COMP. B1 ENABLE
COMP. B2 ENABLE
ALARM OUTPUT
DIGITAL STG 1 (1.5-5V)
DIGITAL STG 2 (1.5-5V)
Line Voltage
24 VAC Transformer
3 VA Minimum
WARNING!!
Observe Polarity! All
boards must be wired
with GND-to-GND and 24
VAC-to-24 VAC. Failure
to observe polarity could
result in damage to the
boards.
HSSC Cable
Connect To VCM-X WSHP
E-BUS Controller
LEAVING WATER TEMPERATURE
Figure 6: VCM-X E-BUS Controller to WSHP-X Module Wiring Diagram for Single Water Circuit
10
Technical Guide
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