23
SERVICE TEST
General
The units are equipped with a Service Test feature, which is in-
tended to allow a service person to force the unit into different
modes of operation to test them. To use this feature, enter the
Service Test category on the local display and place the unit
into the test mode by changing Service Test
TEST from
OFF to ON. The display will prompt for the password before
allowing any change. The default password is 1111. Once the
unit enters the Service Test mode, the unit will shut down all
current modes.
TEST
The TEST command turns the unit off (hard stop) and allows
the unit to be put in a manual control mode.
STOP
The STOP command completely disables the unit (all outputs
turn off immediately). Once in this mode, nothing can override
the unit to turn it on. The controller will ignore all inputs and
commands.
S.STP
Setting Soft Stop to YES turns the unit off in an orderly way,
honoring any time guards currently in effect.
FAN.F
By turning the FAN FORCE on, the supply fan is turned on and
will operate as it normally would, controlling duct static pres-
sure on VAV applications or just energizing the fan on CV ap-
plications. To remove the force, press ENTER and then press
the UP and DOWN arrows simultaneously.
F.4.CH
The 4-Inch Filter Change Mode variable is used to service the
unit when 4-in. filters are used. When the filters need to be
changed, set Service Test
F. 4 . C H = YES. The unit will be
placed in Service Test mode and the economizer will move to
the 40% open position to facilitate removal of the 4-in. filters.
After the filters have been changed, set Service Test
F. 4 . C H
= NO to return the unit to normal operation.
The remaining categories: INDP, FANS, COOL HEAT, and
HMZR are sub-modes with separate items and functions. See
Table 30.
Table 30 — Service Test
ITEM EXPANSION RANGE UNITS POINT WRITE STATUS
TEST Service Test Mode ON/OFF MAN_CTRL
STOP Local Machine Disable YES/NO UNITSTOP config
S.STP Soft Stop Request YES/NO SOFTSTOP forcible
FAN.F Supply Fan Request YES/NO SFANFORC forcible
F.4.CH 4 in. Filter Change Mode YES/NO FILT4CHG
INDP TEST INDEPENDENT OUTPUTS
ECN.C Economizer Act.Cmd.Pos. ECONCTST
E.PWR Economizer Power Test ECONPTST
E.CAL Calibrate the Economizer? ECON_CAL
PE.A Power Exhaust Relay A PE_A_TST
PE.B Power Exhaust Relay B PE_B_TST
PE.C Power Exhaust Relay C PE_C_TST
H.I.R Heat Interlock Relay ON/OFF HIR_TST
ALRM Remote Alarm/Aux Relay ON/OFF ALRM_TST
FANS TEST FANS
S.FAN Supply Fan Relay ON/OFF SFAN_TST
S.VFD Supply Fan VFD Speed 0 to 100 % SGVFDTST
CD.F.A Condenser Fan Circuit A ON/OFF CNDA_TST
CD.F.B Condenser Fan Circuit B ON/OFF CNDB_TST
A.VFD MtrMaster A Commanded % 0 to 100 % OAVFDTST
B.VFD MtrMaster B Commanded % 0 to 100 % OBVFDTST
MMF.A MtrMaster Fan Circuit A ON/OFF MM A TST
MMF.B MtrMaster Fan Circuit B ON/OFF MM B TST
OV.A Outdoor Fan VFD A Control Cmd % 0 to 100 % OV_A_TST
OV.B Outdoor Fan VFD B Control Cmd % 0 to 100 % OV_B_TST
COOL TEST COOLING
A1 Compressor A1 Relay ON/OFF CMPA1TST
A2 Compressor A2 Relay ON/OFF CMPA2TST
MLV Min. Load Valve (HGBP) ON/OFF MLV_TST
DS.CP Digital Scroll Capacity 20 to 100 % DSCAPTST
B1 Compressor B1 Relay ON/OFF CMPB1TST
B2 Compressor B2 Relay ON/OFF CMPB2TST
RHV Humidimizer 3-Way Valve ON/OFF RHVH_TST
C.EXV Condenser EXV Position 0 to 100 % CEXVHTST
B.EXV Bypass EXV Position 0 to 100 % BEXVHTST
HEAT TEST HEATING
HT.ST Requested Heat Stage 0 to MAX HTST_TST
HT.1 Heat Relay 1 ON/OFF HS1_TST
HT.2 Heat Relay 2 ON/OFF HS2_TST
HT.3 Relay 3 W1 Gas Valve 2 ON/OFF HS3_TST
HT.4 Relay 4 W2 Gas Valve 2 ON/OFF HS4_TST
HT.5 Relay 5 W1 Gas Valve 3 ON/OFF HS5_TST
HT.6 Relay 6 W2 Gas Valve 3 ON/OFF HS6_TST
HMZR TEST HUMIDI-MIZER
RHV Humidimizer 3-Way Valve ON/OFF RHVH_TST
C.EXV Condenser EXV Position 0 to 100 % CEXVHTST
B.EXV Bypass EXV Position 0 to 100 % BEXVHTST
C.CAL Condenser EXV Calibrate ON/OFF CEXV_CAL
B.CAL Bypass EXV Calibrate ON/OFF BEXV_CAL
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