ClimateMaster DC Series Installation Manual download pdf (Page 31)

Residential H&V - 60Hz R22 &R410A

Rev.: 22 Dec, 2008

climatemaster.com

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

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 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-FP2

Low Temp) provides ﬁ eld selection of temperature limit

setting for FP2 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

the factory.

Not Clipped = 30°F [-1°C]. Clipped = 10°F [-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

CXM Controls

Table 6a: CXM LED And Alarm Relay Operations

Section 10 - Packaged IOM 31 4/24/09 3:16:53 PM

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 49 50

Comments to this Manuals

No comments

ClimateMaster DC Series Installation Manual Page 31

Comments to this Manuals

Related products and manuals for Heat pumps ClimateMaster DC Series