T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y
31
c l i m a t e m a s t e r. c o m
Tr a n q u i l i t y
®
W a t e r- t o - W a t e r T H W S e r i e s
R e v i s e d : 0 2 J a n u a r y, 2 0 1 3
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 - FP1 Fault in memory
Flashing Code 4
Cycling Code 4
Test Mode - FP2 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
Table 6a: CXM LED And Alarm Relay Operations
CAUTION!
CAUTION!
Do not restart units without inspection and
remedy of faulting condition. Equipment damage may
occur.
CXM Control
CXM Control
For detailed control information, see CXM Application,
Operation and Maintenance (AOM) manual (part #
97B0003N12.
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.
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.
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
