Orion System One Condenser Head Pressure Module - Manual (Page 3)

Technical Guide
One Condenser Head Pressure Module
3
Overview
NOTE: Software version 1.06 and earlier contain a few
differences from version 1.07 and later. For version
1.06 and earlier details, please see the Appendix.
The version number can be found on the upper right
of your module.
The One Condenser Head Pressure Module (OE370-23-HP1C) monitors
four individual head pressure transducers and controls the Condenser
Fan or Water Valve based on the highest of the four readings. If this is
a heat pump unit, the module is able to detect when the unit is in Heat
Pump Heating mode and will force the condenser signal to 100% until
it leaves this mode.
The One Condenser Head Pressure Module is designed to work stand-
alone by using its OPTIONS Dip Switch to adjust the Head Pressure
setpoint.
Up to (2) One Condenser Head Pressure Modules can be daisy-chained
together and connected to the VCM-X Modular Controller or VCM-X
WSHP Controller using the E-BUS Distribution Module allowing the
One Condenser Head Pressure Module to receive setpoints from the
Controller. Up to (2) modules can also be daisy-chained together and
directly connected to the VCM-X Modular E-BUS or VCM-X WSHP
E-BUS Controller. See chart on page 2 for part numbers.
The One Condenser Head Pressure Module also provides a pulse width
modulation (PWM) signal or voltage output signal to control the con-
denser fan.
The One Condenser Head Pressure Module requires a 24 VAC power
connection with an appropriate VA rating.
Module Overview
Figure 1: One Condenser Head Pressure Module
Features
The One Condenser Head Pressure Module provides the following:

Can be operated stand alone or (2) can be daisy-chained
together and connected to a VCM-X Modular or VCM-X
WSHP Controller using the E-BUS Distribution Module to
E-BUS interface

Two modules can be daisy-chained together and be directly
connected to a VCM-X Modular E-BUS or VCM-X WSHP
E-BUS Controller

Monitors up to four individual head pressure transducers

Provides control of Condenser Output Signal based on the
highest reading of head pressure transducers

Capable of monitoring a Reverse Valve Signal

Forces Condenser Fan to 100% while in the Heat Pump
Heating Mode
NOTE: The One Condenser Head Pressure Module contains
no user-serviceable parts. Contact qualifi ed technical
personnel if your Module is not operating correctly.
LED BLINK CODES
LED NAME STAT
BLINKS QTY. OF SENSORS INSTALLED
LED NAME ALARM
NO PROBLEMS 0
NO SENSORS DETECTED 1
HIGH HEAD PRESSURE DETECTED 2
LOW HEAD PRESSURE DETECTED 3
WattMaster Label
#LB102057-A
Rev.: 1J
E-BUS
Connector
E-BUS
Connector
+5V
SIG 1
GND
+5V
SIG 2
GND
+5V
SIG 3
GND
+5V
SIG 4
GND
+24
VA
C
GND
HEAD
PRESSURE
TRANSDUCER #1/
HEAD
PRESSURE
TRANSDUCER #2
HEAD
PRESSURE
TRANSDUCER #3
HEAD
PRESSURE
TRANSDUCER #4
PWM2+
One Condenser Head Pressure Module
1C Orion No.:OE370-23-HP
AAON No.:
R74860
AO1
AO2
GND
COND. SIGNAL
NOT USED
PWM1-
PWM1+
PWM2-
COND. FAN
NOT USED
COND. FAN
NOT USED
GND
RELA
Y
CONT
ACT
RA
TING IS 1
AMP
MAX @ 24 V
AC
COND. ENABLE
NOT USED
NOT USED
R1
R2
R3
R4
RC RELAY COMMON
BIN 1
BIN 2
BIN 3
COM
NOT USED
COMMON
COND. ENABLE INPUT
REV. VLV. INPUT ENABLE
A1
A2
A3
A4
REV. VLV. ENABLE
www.aaon.com
ALARM
ANALOG
STAT
COMM
R1
R2
GND
RELAYS
R3
R4
Rc
AO1
AO2
PWM1-
PWM1+
PWM2-
PWM2+
ADDRESS
OPTIONS
+5V
SIG 2
GND
+5V
SIG 3
GND
+5V
SIG 4
GND
+5V
SIG 1
GND
BIN 1
BIN 2
BIN 3
COM