Dxm2 Controls - Heat Controller HEV Series Installation, Operation & Maintenance Manual

Heat Controller, Inc.
2.4 - Accessory2 relay personality: DIP 2.4 provides
selection of ACC 2 relay personality (relay operation/
characteristics). See Table 7a for description of functionality.
2.5 - Accessory2 relay personality: DIP 2.5 provides
selection of ACC 2 relay personality (relay operation/
characteristics). See Table 7a for description of functionality.
2.6 - Accessory2 relay personality: DIP 2.6 provides
selection of ACC 2 relay options. See Table 7a for
description of functionality.
2.7 - Auto dehumidifi cation fan mode or high fan mode: DIP
2.7 provides selection of auto dehumidifi cation fan mode or
high fan mode. In auto dehumidifi cation mode, the fan speed
relay will remain off during cooling stage 2 IF the H input is
active. In high fan mode, the fan enable and fan speed relays
will turn on when the H input is active.
On = Auto dehumidifi cation mode. Off = High fan mode.
2.8 - Special factory selection: DIP 2.8 provides special
factory selection. Normal position is "On". Do not change
selection unless instructed to do so by the factory.
Table 7a: Accessory DIP Switch Settings
DIP 2.1 DIP 2.2 DIP 2.3
On On On
Off On On
On Off On
On On Off
Off Off Off
Off On Off
DIP 2.4 DIP 2.5 DIP 2.6
On On On
Off On On
On Off On
On On Off
DIP Package #3 (S3) - DIP Package #3 has 4 switches and
provides the following setup and operating selections:
3.1 – Communications confi guration: DIP 3.1 provides
selection of the DXM2 operation in a communicating system.
The DXM2 may operate as the Master of certain network
confi gurations. In most confi gurations the DXM2 will operate
as a master device.
On = Communicating Master device. Off = communicating
Slave device.
3.2 – HWG Test Mode: DIP 3.2 provides forced operation of
the HWG pump output, activating the HWG pump output for
up to fi ve minutes.
On = HWG test mode. Off = Normal HWG mode.
3.3 – HWG Temperature: DIP 3.3 provides the selection of
the HWG operating setpoint.
On = 150°F [66°C]. Off = 125°F [52°C].
CAUTION!
CAUTION! Do not restart units without inspection and
remedy of faulting condition. Equipment damage may occur.
HEV/H SERIES

DXM2 CONTROLS

ACC1 Relay Option
Cycle with fan
Digital NSB
Water Valve - slow opening
OAD
Reheat Option - Humidistat
Reheat Option - Dehumidistat
ACC2 Relay Option
Cycle with compressor
Digital NSB
Water Valve - slow opening
OAD
3.4 – HWG Status: DIP 3.4 provides HWG operation control.
On = HWG mode enabled. Off = HWG mode disabled.
Table 7b: DXM2 LED and Alarm Relay Operations
Description Status LED
of Operation
DXM2 is
non-functional
Normal Mode
Normal Mode -
Communicating
Normal Mode with
UPS Warning
Normal Mode -
HWG pump active
Fault Retry
Lockout
Active Over/Under
Voltage Condition
Night Setback Flashing Code 2
ESD Flashing Code 3
Invalid T-stat Inputs Flashing Code 4
High Temperature
Flashing Code 5
HWG Lockout
HWG Temperature
Flashing Code 6
Sensor Fault
Test Mode
Test Mode - Flashing Code
ECM blower active per 100 CFM
Test Mode -
No fault in memory
Test Mode - HP/HPWS
fault in memory
Test Mode -
LP fault in memory
Test Mode -
LT1 fault in memory
Test Mode -
LT2 fault in memory
Test Mode -
CO fault in memory
Test Mode - Over/Un-
der voltage in memory
Test Mode - UPS warn-
ing in memory
Test Mode - Swapped
thermistor in memory
Test Mode - Airfl ow
fault in memory
Test Mode - IFC Fault
in Memory
-Fast Flash = 2 fl ashes every 1 second
-Slow Flash = 1 fl ash every 2 seconds
-Very Slow Flash = 1 fl ash every 5 seconds
-Flash code 2 = 2 on pulses, 10 second pause, 2 on pulses, 10
second pause, etc.
-On pulse 1/3 second; off pulse 1/3 second
31
Installation, Operation & Maintenance
Status LED
(Red) (Green)
Off Off
On On
Very Slow
On
Flash
Cycle (closed 5
On On
sec., Open 25 sec.)
Slow Flash -
- Slow Flash
- Fast Flash
Open (Closed after
- Slow Flash
-
-
-
-
-
Fast Flash -
-
Flashing
-
Code 1
Flashing
-
Code 2
Flashing
-
Code 3
Flashing
-
Code 4
Flashing
-
Code 5
Flashing
-
Code 6
Flashing
-
Code 7
Flashing
-
Code 8
Flashing
-
Code 9
Flashing
- Cycling Code 10
Code 10
Flashing
- Cycling Code 13
Code 13
Alarm Relay
Open
Open
Open
Open
Open
Closed
15 minutes)
-
-
-
-
-
-
-
Cycling Code 1
Cycling Code 2
Cycling Code 3
Cycling Code 4
Cycling Code 5
Cycling Code 6
Cycling Code 7
Cycling Code 8
Cycling Code 9