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
TSL Vertical Stack
R e v. : 0 4 / 2 4 / 2 0 1 9
44
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
DXM2 Control -
For detailed control information, see
DXM2 AOM (part #97B0003N15), Lon controller AOM (part
#97B0013N01) or MPC AOM (part # 97B0031N01).
Table 10: LED And Alarm Relay Output Table
Field Selectable Inputs -
Test mode: Test mode allows
the service technician to check the operation of the control
in a timely manner, at the board, by pushing test button,
or externally, with service tool using harness 11B0100N27
connected to port (See Fig 15). The DXM 2 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 holding test
button on board for 3 seconds or service tool.
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 DXM 2 control.
Water coil low temperature
limit setting:
Jumper 3 (JW3-
LT1 Low Temp) provides fi eld
selection of temperature limit
setting for LT1 of 30°F or 10°F
[-1°F or -12°C] (refrigerant
temperature).
Not Clipped = 30°F [-1°C].
Clipped = 10°F [-12°C].
Air coil low temperature limit
setting: Jumper 2 (JW2-LT2
Low Temp) provides fi eld
selection of temperature
limit setting for LT2 of 30°F
or 10°F [-1°F or -12°C]
(refrigerant temperature).
Note: This jumper
should
only be clipped under
extenuating circumstances,
as recommended by
ClimateMaster technical
services.
Not Clipped = 30°F [-1°C].
Clipped = 10°F [-12°C].
Alarm relay setting:
Jumper
4 (JW4-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).
Low pressure normally open:
Jumper 1 (JW1-LP norm
open) provides fi eld selection for low pressure input to be
normally closed or normally open.
Not Clipped = LP normally closed. Clipped = LP normally
open.
ECM Motor Option Jumpers
(Set at Factory):
For TSL09 and 12 switch ECM motor set AO-1 jumper to
PWM.
DIP Switches - Note: In the following fi eld confi guration
options, DIP switches should only be changed when
power is removed from the DXM control.
DIP Package #1 (S1) -
DIP Package #1 has 8 switches and
provides the following setup selections:
DXM2 Control
DMX2 CONTROLLER FAULT CODES
DMX2 Fault and Status LED Operation
with Test Mode Not Active
Fault LED
(Red)
Status LED
(Green)
Alarm Relay
DXM2 Is Non-Functional
Off
Off
Open
Normal Operation - No Active Communications
On
On
Open
Normal Operation - With Active Communications
Very Slow Flash
ON
Open
Control Is Currently In Fault Retry Mode
Slow Flash
-
Open
Control Is Currently Locked Out
Fast Flash
-
Closed
Control Is Currently In An Over/ Under Voltage Condition
Slow Flash
-
Open (Closed After 15 min)
Hot Water Mode Active
-
Slow Flash
Open
(NSB) Night Setback Condition Recognized
-
Flashing Code 2
-
(ESD) Emergency Shutdown Condition Recognized
-
Flashing Code 3
-
Invalid Thermostat Input Combination
-
Flashing Code 4
-
High Hot Water Temperature Lockout Active
-
Flashing Code 5
-
Hot Water Mode Sensor Fault Active
-
Flashing Code 6
-
DMX2 Fault LED and Status Operation
with Test Mode Active
Fault LED
(Red)
Status LED
(Green)
Alarm Relay
No Fault Since Power Up In Memory
Flashing Code 1
-
Cycling Code 1
High Pressure Fault In Memory
Flashing Code 2
-
Cycling Code 2
Low Pressure Fault In Memory
Flashing Code 3
-
Cycling Code 3
Low Temperature Protection 1 In Fault Memory
Flashing Code 4
-
Cycling Code 4
Low Temperature Protection 2 In Fault Memory
Flashing Code 5
-
Cycling Code 5
Condensate Overfl ow Fault In Memory
Flashing Code 6
-
Cycling Code 6
Over/Under Voltage Shutdown In Memory
Flashing Code 7
-
Cycling Code 7
UPS Warning In Memory
Flashing Code 8
-
Cycling Code 8
UPT Fault In Memory
Flashing Code 9
-
Cycling Code 9
ECM Air Flow Fault In Memory
Flashing Code 10
-
Cycling Code 10
Test Mode Active With No ECM Connected Or Operating
-
Fast Flash
-
Test Mode Active With ECM Operating
-
Flashing ECM Airfl ow
-
- 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.
- Numeric Codes = On pulse 1/3 second; Off pulse 1/3 second followed by a 10 second delay.
- ECM Airfl ow = 1 fl ash per 100 CFM; On pulse 1/3 second followed by a 10 second delay.
- Alarm Relay Open = alarm signal off; Alarm Relay Closed = alarm signal on.