Heat Controller HTV Series Installation, Operation & Maintenance Instructions Manual page 34

Two-stage geothermal heat pumps 2 to 6 tons
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DIP Switch 4: DDC Output at EH2 -
provides selection for DDC operation. If set
to "DDC Output at EH2," the EH2 terminal will
continuously output the last fault code of the
controller. If set to "EH2 normal," EH2 will
operate as standard electric heat output.
On = EH2 Normal. Off = DDC Output at
EH2
Note: Some CXM controls only have a 2
position DIP switch package. If this is the
case, this option can be selected by clipping
the jumper which is in position 4 of SW1.
Jumper not clipped = EH2 Normal, Jumper
clipped = DDC Output at EH2.
DIP Switch 5: Factory Setting - Normal
position is "On". Do not change selection
unless instructed to do so by the factory.
Description of Operation
Normal Mode
Normal Mode with UPS Warning
CXM is Non-Functional
Fault Retry
Lockout
Over/Under Voltage Shutdown
Test Mode - No Fault in Memory
Test Mode - HP Fault in Memory
Test Mode - LP Fault in Memory
Test Mode - FP1 Fault in Memory
Test Mode - FP2 Fault in Memory
Test Mode - CO Fault in Memory
Test Mode - Over/Under Shutdown in Memory
Test Mode - UPS in Memory
Test Mode - Swapped Thermistors
-
Slow Flash = 1 flash every 2 seconds
- Fast Flash = 2 flashes every 1 second
- Flash Code 2 = 2 quick flashes, 10 second pause, 2 quick flashes, 10 second pause, etc.
- On Pulse 1/3 second; Off Pulse 1/3 second
CXM CONTROLS
HTV/HTD/HTH SERIES
T
CAUTION! Do not restart units
without inspection and remedy of
faulting condition. Equipment
damage may occur.
Table 6: CXM and Alarm
Relay Operations
LED
ON
ON
OFF
Slow Flash
Fast Flash
Slow Flash
Flashing Code 1
Flashing Code 2
Flashing Code 3
Flashing Code 4
Flashing Code 4
Flashing Code 6
Flashing Code 7
Flashing Code 8
Flashing Code 9
30
33
⌧ CAUTION! ⌧
Alarm Relay
Open
Cycle (closed 5 sec., open 25 sec.)
Open
Open
Closed
Open (closed after 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
Heat Controller, Inc.

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