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59
Table 41 — Alarm Codes (cont)
LEGEND
PREFIX
CODE
SUFFIX
CODE
DESCRIPTION
REASON FOR ALARM
ACTION TAKEN
BY CONTROL
RESET
TYPE
PROBABLE CAUSE
Co
.A1
Loss of Communication with
Compressor Board A1
No communication with
SPM
Affected com-
pressor is
shut down
Automatic
Wrong SPM address,
wrong unit configuration,
wiring error, power loss to
SPM.
.A2
Loss of Communication with
Compressor Board A2
.A3
Loss of Communication with
Compressor Board A3
.A4
Loss of Communication with
Compressor Board A4
.B1
Loss of Communication with
Compressor Board B1
.B2
Loss of Communication with
Compressor Board B2
.B3
Loss of Communication with
Compressor Board B3
.B4
Loss of Communication with
Compressor Board B4
.C1
Loss of Communication with
Compressor Board C1
.C2
Loss of Communication with
Compressor Board C2
.C3
Loss of Communication with
Compressor Board C3
.C4
Loss of Communication with
Compressor Board C4
.E1
Loss of Communication with
EXV Board Number 1
No communication with
EXV1
Circuit A & B shut
down or not
allowed to start
Automatic
Wrong module address,
wrong unit configuration,
wiring error, power loss to
module
.E2
Loss of Communication with
EXV Board Number 2
No communication with
EXV2
Circuit C shut
down or not
allowed to start
.F1
Loss of Communication with
Fan Board Number 1
No communication with
Fan Board 1
Circuit A & B shut
down or not
allowed to start
(060-150,
210-250)
Circuit A shut
down or not
allowed to start
(160-190,
275-300)
Automatic
Wrong module address,
wrong unit configuration,
wiring error, power loss to
module
.F2
Loss of Communication with
Fan Board Number 2
No communication with
Fan Board 2
Circuit B shut
down or not
allowed to start
(160-190,
275-300)
.F3
Loss of Communication with
Fan Board Number 3
No communication with
Fan Board 3
Circuit C shut
down or not
allowed to start
(210-300)
.O1
Loss of Communication with
Free Cooling Board
No communication with
Free Cooling Board
None
Automatic
Configuration error.
.O2
Loss of Communication with
Electrical Heaters Board
No communication with
Electrical Heaters Board
.O3
Loss of Communication with
Energy Management Board
No communication with
Energy Management
Board
Disable or not
allow EMM
Functions
(3-Step and
4-20 mA Demand
Limit, 4-20 mA
and Space
Temperature
Reset, Occu-
pancy Override,
and Ice Build)
Automatic
Wrong module address,
wrong unit configuration,
wiring error, power loss to
module
.O4
Loss of Communication with
Heat Reclaim Board
No communication with
Heat Reclaim Board
Unit shall return
to the standard air
cooled mode
Automatic
Wrong module address,
wrong unit configuration,
wiring error, power loss to
module
EMM —
Energy Management Module
OAT —
Outdoor Air Temperature
EWT —
Entering Water Temperature
PTC —
Positive Temperature Coefficient
EXV
—
Electronic Expansion Valve
SCT —
Saturated Condensing Temperature
HR
—
Heat Reclaim
SPM —
Scroll Protection Module
LWT —
Leaving Water Temperature
SST
—
Saturated Suction Temperature
MOP —
Maximum Operating Pressure
Summary of Contents for AQUASNAP 30RBA315
Page 77: ...77 Fig 37 Control Schematic 30RB060 080 a30 4619...
Page 78: ...78 Fig 38 Control Schematic 30RB090 150 a30 4620...
Page 79: ...79 Fig 39 Control Schematic 30RB160 190 a30 4622...
Page 80: ...80 Fig 40 Control Schematic 30RB210 300 a30 4622...
Page 81: ...81 Fig 41 Heat Reclaim Control Schematic a30 4622...