Carrier 30GTR Specifications download pdf (Page 50)

Table 27 — Alarm and Alert Codes (cont)

ALARM/

ALEERT

CODE

ALARM

ALERT

DESCRIPTION

WHY WAS THIS

ALARm

GENERATED?

ACTION TAKEN

BY CONTROL

RESET

METHOD

PROBABLE

CAUSE

150 Alarm Emergency Stop CCN emergency stop

command received

Chiller shutdown with-

out going through

pumpdown.

Automatic once CCN

command for EMSTOP

returns to

normal

CCN Network

command.

151 Alarm Illegal Conﬁguration One or more of the

illegal conﬁgurations

shown in the Note be-

low exists.

Chiller is not allowed to

start.

Manual once conﬁgu-

ration errors are

corrected

Conﬁguration error.

See Note on

page 49.

152 Alarm Unit Down Due to

Failure

Both circuits are down

due to alarms/alerts.

Chiller is unable to run. Automatic once

alarms/alerts are

cleared that prevent

the chiller from

starting.

Alarm notiﬁes user

that chiller is

100% down.

153 Alarm Real Time Clock Hard-

ware Failure

Internal clock on MBB

fails

Occupancy schedule

will not be used. Chiller

defaults to Local On

mode.

Automatic when cor-

rect clock control

restarts.

Main Base Board

failure.

154 Alarm Serial EEPROM Hard-

ware Failure

Hardware failure with

MBB

Chiller is unable to run. Manual Main Base Board

failure.

155 Alert Serial EEPROM Stor-

age Failure

Conﬁguration/storage

failure with MBB

No Action Manual Potential failure of

MBB. Download cur-

rent operating soft-

ware. Replace MBB

if error occurs

again.

156 Alarm Critical Serial

EEPROM Storage

Failure

Conﬁguration/storage

failure with MBB

Chiller is not allowed to

run.

Manual Main Base Board

failure.

157 Alarm A/D Hardware Failure Hardware failure with

peripheral device

Chiller is not allowed to

run.

Manual Main Base Board

failure.

170 Alert Loss of Communica-

tion with CXB

MBB loses communi-

cation with CXB

Compressors A3, A4

and B3 and unloaders

A2/B2 unable to

operate.

Automatic Wiring error, faulty

wiring or failed CXB

module.

172 Alarm Loss of Communica-

tion with EXV

MBB loses communi-

cation with EXV

Chiller shutdown with-

out going through

pumpdown.

Automatic Wiring error, faulty

wiring or failed EXV

module.

173 Alert Loss of Communica-

tion with EMM

MBB loses communi-

cation with EMM

4 to 20 mA tempera-

ture reset disabled.

Demand Limit set to

100%. 4 to 20 mA set

point disabled.

Automatic Wiring error, faulty

wiring or failed

Energy Manage-

ment Module (EMM).

174 Alert 4 to 20 mA Cooling Set

Point Input Failure

If conﬁgured with EMM

and input less than

2 mA or greater than

22 mA

Set point function dis-

abled. Chiller controls

to CSP1.

Automatic Faulty signal generator,

wiring error, or faulty

EMM.

176 Alert 4 to 20 mA Tempera-

ture Reset Input Fail-

ure

If conﬁgured with EMM

and input less than

2 mA or greater than

22 mA

Reset function dis-

abled. Chiller returns

to normal set point

control.

Automatic Faulty signal generator,

wiring error, or faulty

EMM.

177 Alert 4 to 20 mA Demand

Limit Input Failure

If conﬁgured with EMM

and input less than

2 mA or greater than

22 mA

Demand limit function

disabled. Chiller re-

turns to 100% demand

limit control.

Automatic Faulty signal generator,

wiring error, or faulty

EMM.

200 Alarm Cooler Pump Interlock

Failure to Close at

Start-Up

If conﬁgured for cooler

pump control and

cooler pump interlock

not closed within

1 minute after pump is

started

Cooler pump shut off.

Chiller shutdown with-

out going through

pumpdown.

Manual Failure of cooler pump

or controls.

201 Alarm Cooler Pump Interlock

Opened During Normal

Operation

If conﬁgured for cooler

pump control and inter-

lock opens while cooler

pump relay is on

Cooler pump shut off.

Chiller shutdown with-

out going through

pumpdown.

Manual Failure of cooler pump

or controls.

202 Alarm Cooler Pump Interlock

Closed When Pump is

Off

If conﬁgured for cooler

pump control and inter-

lock closes while

cooler pump relay

is off

Chiller is not allowed to

start.

Manual Failure of cooler pump

relay or interlock,

welded contacts.

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 83 84

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Carrier 30GTR Specifications Page 50

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