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ITEM
TEST
Service Test Mode
STOP
Local Machine Disable
S.STP
Soft Stop Request
FAN.F
Supply Fan Request
F.4.CH
4 in. Filter Change Mode
INDP
TEST INDEPENDENT OUTPUTS
ECN.C
Economizer Act.Cmd.Pos.
E.PWR
Economizer Power Test
E.CAL
Calibrate the Economizer?
PE.A
Power Exhaust Relay A
PE.B
Power Exhaust Relay B
PE.C
Power Exhaust Relay C
H.I.R
Heat Interlock Relay
ALRM
Remote Alarm/Aux Relay
FANS
TEST FANS
S.FAN
Supply Fan Relay
S.VFD
Supply Fan VFD Speed
CD.F.A
Condenser Fan Circuit A
CD.F.B
Condenser Fan Circuit B
A.VFD
MtrMaster A Commanded %
B.VFD
MtrMaster B Commanded %
MMF.A
MtrMaster Fan Circuit A
MMF.B
MtrMaster Fan Circuit B
COOL
TEST COOLING
A1
Compressor A1 Relay
A2
Compressor A2 Relay
MLV
Min. Load Valve (HGBP)
DS.CP
Digital Scroll Capacity
B1
Compressor B1 Relay
B2
Compressor B2 Relay
RHV
Humidimizer 3-Way Valve
C.EXV
Condenser EXV Position
B.EXV
Bypass EXV Position
HEAT
TEST HEATING
HT.ST
Requested Heat Stage
HT.1
Heat Relay 1
HT.2
Heat Relay 2
HT.3
Relay 3 W1 Gas Valve 2
HT.4
Relay 4 W2 Gas Valve 2
HT.5
Relay 5 W1 Gas Valve 3
HT.6
Relay 6 W2 Gas Valve 3
HMZR
TEST HUMIDI-MIZER
RHV
Humidimizer 3-Way Valve
C.EXV
Condenser EXV Position
B.EXV
Bypass EXV Position
C.CAL
Condenser EXV Calibrate
B.CAL
Bypass EXV Calibrate
THIRD PARTY CONTROL
The method of control would be through
Thermostat —
the thermostat inputs:
Y1 = first stage cooling
Y1 and Y2 = first and second stage cooling
W1 = first stage heating
W1 and W2 = first and second stage heating
G = supply fan
The alarm output TB4-7 and 8, will pro-
Alarm Output —
vide relay closure whenever the unit is under an alert or alarm
condition.
The remote switch may be configured
Remote Switch —
for three different functions. Under Configuration
RM.CF to one of the following:
0 = no remote switch
1 = occupied/unoccupied switch
2 = start/stop switch
3 = occupancy override switch
With RM.CF set to 1, no time schedules are followed and
the unit follows the remote switch only in determining the state
of occupancy.
With RM.CF set to 2, the remote switch can be used to shut
down and disable the unit, while still honoring time guards on
compressors. Time schedules, internal or external, may be run
simultaneously with this configuration.
With RM.CF set to 3, the remote input may override an
unoccupied state and force the control to go into occupied
mode. As with the start/stop configuration, an internal or exter-
nal time schedule may continue to control occupancy when the
switch is not in effect.
Table 30 — Service Test
EXPANSION
UNIT, set
RANGE
UNITS
ON/OFF
YES/NO
YES/NO
YES/NO
YES/NO
ON/OFF
ON/OFF
ON/OFF
0-100
%
ON/OFF
ON/OFF
0-100
%
0-100
%
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
20-100
%
ON/OFF
ON/OFF
ON/OFF
0-100
%
0-100
%
0-MAX
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
0-100
%
0-100
%
ON/OFF
ON/OFF
Under Configuration
pancy switch can be set to either a normally open or normally
closed switch input. Normal is defined as either unoccupied, start
or "not currently overridden," respective to the RM.CF
configuration.
On VFD equipped supply fans, supply
VFD Control —
duct static pressure control may be left under unit control or be
externally controlled. To control a VFD externally with a 4 to
20 mA signal, set SP.RS to 4, under the Configuration
menu. This will set the reset to VFD control. When SP.RS = 4,
the static pressure reset function acts to provide direct VFD
speed control where 4 mA = 0% speed and 20 mA = 100%
(SP.MN and SP.MX will override). Note that SP.CF must be
set to 1 (VFD Control) prior to configuring SP.RS = 4. Failure
to do so could result in damage to ductwork due to overpressur-
ization. In effect, this represents a speed control signal "pass
through" under normal operating circumstances. The Com-
fortLink controller overrides the third party signal for critical
operation situations, most notably smoke and fire control. Wire
the input to the controls expansion module (CEM) using TB-11
and 12. An optional CEM board is required.
See Appendix C and the VFD literature supplied with the unit
for VFD configurations and field wiring connections to the VFD.
Supply Air Reset —
the ComfortLink controller is capable of accepting a 4 to
20 mA signal, to reset the supply-air temperature up to a maxi-
mum of 20 F. See VFD Control section above.
Demand Limit Control —
control" refers to the restriction of the machine's mechanical
cooling capacity to control the amount of power that a machine
may use.
25
POINT
WRITE STATUS
MAN_CTRL
UNITSTOP
config
SOFTSTOP
forcible
SFANFORC
forcible
FILT4CHG
ECONCTST
ECONPTST
ECON_CAL
PE_A_TST
PE_B_TST
PE_C_TST
HIR_TST
ALRM_TST
SFAN_TST
SGVFDTST
CNDA_TST
CNDB_TST
OAVFDTST
OBVFDTST
MM A TST
MM B TST
CMPA1TST
CMPA2TST
MLV_TST
DSCAPTST
CMPB1TST
CMPB2TST
RHVH_TST
CEXVHTST
BEXVHTST
HTST_TST
HS1_TST
HS2_TST
HS3_TST
HS4_TST
HS5_TST
HS6_TST
RHVH_TST
CEXVHTST
BEXVHTST
CEXV_CAL
BEXV_CAL
SW.LG
RMI.L, the remote occu-
With the installation of the CEM,
The term "demand limit
SP
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