Orion System Water Source Heat Pump X Module - Manual (Page 3)

Technical Guide
WSHP-X Module
3
Overview
The OE334-26-WSHPX-A Water Source Heat Pump X (WSHP-X)
Module monitors the compressors on an AAON
® Water Source Heat
Pump unit and can disable the compressors based on low Suction Pres-
sure, 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 confi guration can be either single
or dual. There are eight R410-A glycol confi gurations for the WSHP-X
Module—0%-40% in increments of 5%. There are two refrigerant selec-
tions—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.
Module Overview
Figure 1: Water Source Heat Pump X Module
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.
WATTMASTER CONTROLS
Y 102374 REV 0 S
MADE IN USA
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