C L I M A T E M A S T E R W A T E R - S O U R C E H E A T P U M P S
34
C l i m a t e M a s t e r Wa t e r- S o u rc e H e a t P u m p s
Tr a n q u i l i t y 1 6 ( T C ) S e r i e s
R e v. : 2 5 J u l y, 2 0 1 7
DIP switch 2: Stage 2 Selection - provides selection of
whether compressor has an “on” delay. If set to stage
2, the compressor will have a 3 second delay before
energizing. Also, if set for stage 2, the alarm relay will
NOT cycle during test mode.
On = Stage 1. Off = Stage 2
DIP switch 3: Not Used.
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.
-Slow Flash = 1 fl ash every 2 seconds
-Fast Flash = 2 fl ashes every 1 second
-Flash code 2 = 2 quick fl ashes, 10 second pause, 2
quick fl ashes, 10 second pause, etc.
-On pulse 1/3 second; off pulse 1/3 second
CXM Controls
CXM Control -
For detailed control information,
see CXM or DXM Application, Operation and
Maintenance (AOM) manual (part # 97B0003N12 or part
#97B0003N13).
Field Selectable Inputs -
Test mode: Test mode
allows the service technician to check the operation
of the control in a timely manner. By momentarily
shorting the test terminals, the CXM control enters a
20 minute test mode period in which all time delays
are sped up 15 times. Upon entering test mode, the
status LED will fl ash a code representing the last fault.
For diagnostic ease at the thermostat, the alarm relay
will also cycle during test mode. The alarm relay will
cycle on and off similar to the status LED to indicate a
code representing the last fault, at the thermostat. Test
mode can be exited by shorting the test terminals for 3
seconds.
Retry Mode: If the control is attempting a retry of a
fault, the status LED will slow fl ash (slow fl ash = one
fl ash every 2 seconds) to indicate the control is in the
process of retrying.
Field Confi guration Options -
Note: In the following
fi eld confi guration options, jumper wires should be
clipped ONLY when power is removed from the CXM
control.
Water coil low temperature limit setting: Jumper
3 (JW3-FP1 Low Temp) provides fi eld selection of
temperature limit setting for FP1 of -1°C or -12°C]
(refrigerant temperature).
Not Clipped = -1°C. Clipped = -12°C.
Air coil low temperature limit setting: Jumper 2 (JW2-
FP2 Low Temp) provides fi eld selection of temperature
limit setting for FP2 of -1°C or -12°C (refrigerant
temperature)
. Note: This jumper should only be
clipped under extenuating circumstances, as
recommended by the factory.
Not Clipped = -1°C. Clipped = -12°C.
Alarm relay setting: Jumper 1 (JW1-AL2 Dry) provides
fi eld selection of the alarm relay terminal AL2 to
be jumpered to 24VAC or to be a dry contact (no
connection).
Not Clipped = AL2 connected to R. Clipped = AL2 dry
contact (no connection).
DIP Switches
- Note: In the following fi eld
confi guration options, DIP switches should only be
changed when power is removed from the CXM
control.
DIP switch 1: Unit Performance Sentinel Disable -
provides fi eld selection to disable the UPS feature.
On = Enabled. Off = Disabled.
Table 6a: CXM/DXM LED And Alarm Relay Operations
CAUTION!
Do not restart units without inspection
and remedy of faulting condition. Equipment damage
may occur.
CAUTION!
Description of Operation
LED
Alarm Relay
Normal Mode
On
Open
Normal Mode with UPS Warning
On
Cycle (closed 5 sec., Open 25 sec.)
CXM is non-functional
Off
Open
Fault Retry
Slow Flash
Open
Lockout
Fast Flash
Closed
Over/Under Voltage Shutdown
Slow Flash
Open (Closed after 15 minutes)
Test Mode - No fault in memory
Flashing Code 1
Cycling Code 1
Test Mode - HP Fault in memory Flashing Code 2
Cycling Code 2
Test Mode - LP Fault in memory
Flashing Code 3
Cycling Code 3
Test Mode - LT1 Fault in memory Flashing Code 4
Cycling Code 4
Test Mode - LT2 Fault in memory Flashing Code 5
Cycling Code 5
Test Mode - CO Fault in memory Flashing Code 6
Cycling Code 6
Test Mode - Over/Under
shutdown in memory
Flashing Code 7
Cycling Code 7
Test Mode - UPS in memory
Flashing Code 8
Cycling Code 8
Test Mode - Swapped Thermistor Flashing Code 9
Cycling Code 9
