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44
HVAC Mode — FIRE SHUT DOWN (19)
The unit has been stopped due to a fire shutdown input (FSD)
from two or more of the fire control modes, purge, evacuation,
or pressurization.
HVAC Mode — PRESSURIZATION (20)
The unit is in the special fire pressurization mode where the sup-
ply fan is on, the economizer damper is open, and the power ex-
haust fans are off. This mode is invoked by the Fire Pressurization
(PRES) input which can be found in the INPUTFIRE submenu.
HVAC Mode — EVACUATION (21)
The unit is in the special Fire Evacuation mode where the supply
fan is off, the economizer damper is closed, and the power ex-
haust fans are on. This mode is invoked by the Fire Evacuation
(EVAC) input which can be found in the INPUTFIRE submenu.
HVAC Mode — SMOKE PURGE (22)
The unit is in the special Fire Purge mode where the supply fan
is on, the economizer damper is open, and the power exhaust
fans are on. This mode is invoked by the Fire Evacuation
(PURG) input which can be found in the INPUTFIRE submenu.
HVAC Mode — COOLING DEHUM (23)
The unit is operating in the Cooling Dehumidification mode.
On units configured for Humidi-MiZer
®
operation, this is the
Humidi-MiZer dehumidification mode (subcooling).
HVAC Mode — VENTING DEHUM (24)
The unit is operating in Venting Dehumidification mode. On units
configured for Humidi-MiZer operation, this is the Humidi-MiZer
reheat mode.
HVAC Mode — FREEZESTAT TRIP (25)
If the freezestat trips, the unit enters the Freezestat Trip HVAC
mode. The supply fan will run, the hydronic heat valve will be
wide open, and the economizer damper will be closed.
HVAC Mode — PLEN.PRESS.FAIL (26)
The unit is off due to a failure of the plenum pressure switch.
HVAC Mode — RCB COMM FAILURE (27)
The unit is off due to a Rooftop Control Board (RCB) commu-
nication failure.
HVAC Mode — SUPPLY VFD FAULT (28)
The unit is off due to a supply fan VFD fault or supply fan
VFD communications loss.
HVAC Mode — HEATING DEHUMID (29)
The unit is operating in the Heating Dehumidification mode.
Unit Configuration Submenu
The
UNIT
sub-menu under the Configuration mode of the local
display contains general unit configuration items. This section
will define all of these configurations here for easy reference.
The sub-menu which contains these configurations is located at
the local display under
Configuration
UNIT
.
See Table 31.
Machine Control Type (C.TYP)
This configuration defines the technique and control source re-
sponsible for selecting a cooling, heating, or vent mode and in
determining the method by which compressors are staged. The
control types are:
•
C.TYP
= 1 (VAV-RAT) and
C.TYP
= 2 (VAV-SPT)
Both of these configurations refer to standard VAV opera-
tion. If the control is occupied, the supply fan is run con-
tinuously and return-air temperature will be used in the de-
termination of the selection of a cooling or heating mode.
VAV-SPT differs from VAV-RAT only in that, during the
unoccupied period, space temperature will be used instead
of return-air temperature to start the fan for 10 minutes to
establish an accurate return-air temperature before the re-
turn-air temperature is allowed to call out any mode.
•
C.TYP
= 3 (TSTAT – MULTI)
This configuration will force the control to monitor the
thermostat inputs to make a determination of mode. Unlike
traditional 2-stage thermostat control, the unit is allowed to
use multiple stages of cooling control and perform VAV-
type operation. The control will be able to call out a LOW
COOL or a HIGH COOL mode and maintain a low or high
cool supply air set point.
•
C.TYP
= 4 (SPT – MULTI)
This configuration will force the control to monitor a space
temperature sensor to make a determination of mode. Un-
like traditional 2-stage space temperature control, the unit
is allowed to use multiple stages of cooling control and
perform VAV-type operation. The control will be able to
call out a LOW COOL or a HIGH COOL mode and main-
tain a low or high cool supply air set point.
Table 31 — Unit Configuration
ITEM
EXPANSION
RANGE
UNITS
CCN POINT
DEFAULTS
UNIT
UNIT CONFIGURATION
C.TYP
Machine Control Type
1 to 6
CTRLTYPE
4
SIZE
Unit Size (30-100)
30 to 100
UNITSIZE
30
FN.MD
Fan Mode (0=Auto, 1=Cont)
0 to 1
FAN_MODE
1
RM.CF
Remote Switch Config
0 to 3
RMTINCFG
0
CEM
CEM Module Installed
Yes/No
CEM_BRD
No
TCS.C
Temp.Cmp.Strt.Cool Factr
0 to 60
min
TCSTCOOL
0
TCS.H
Temp.Cmp.Strt.Heat Factr
0 to 60
min
TCSTHEAT
0
SFS.S
Fan Fail Shuts Down Unit
Yes/No
SFS_SHUT
No
SFS.M
Fan Stat Monitoring Type
0 to 2
SFS_MON
0
VAV.S
VAV Unocc.Fan Retry Time
0 to 720
min
SAMPMINS
50
50.HZ
50 Hertz Unit ?
Yes/No
UNIT_HZ
No
MAT.S
MAT Calc Config
0 to 2
MAT_SEL
1
MAT.R
Reset MAT Table Entries?
Yes/No
MATRESET
No
MAT.D
MAT Outside Air Default
0 to 100
%
MATOADOS
20
ALTI
Altitude……..in feet:
0 to 60000
ALTITUDE
0
DLAY
Startup Delay Time
0 to 900
sec
DELAY
0
AUX.R
Auxiliary Relay Config
0 to 3
AUXRELAY
0
SENS
INPUT SENSOR CONFIG
SPT.S
Space Temp Sensor
Enable/Disable
SPTSENS
Disable
SP.O.S
Space Temp Offset Sensor
Enable/Disable
SPTOSENS
Disable
SP.O.R
Space Temp Offset Range
1 to 10
SPTO_RNG
5
SRH.S
Space Air RH Sensor
Enable/Disable
SPRHSENS
Disable
RRH.S
Return Air RH Sensor
Enable/Disable
RARHSENS
Disable
FLT.S
Filter Stat.Sw.Enabled ?
Enable/Disable
FLTS_ENA
Disable
Summary of Contents for Weathermaster 48P2030-100
Page 130: ...130 Fig 19 Typical Power Schematic Sizes 040 075 Shown ...
Page 131: ...131 Fig 20 Main Base Board Input Output Connections ...
Page 132: ...132 Fig 21 RXB EXB CEM SCB Input Output Connections ...
Page 133: ...133 Fig 22 Typical Gas Heat Unit Control Wiring 48P030 100 Units Shown ...
Page 134: ...134 Fig 23 Typical Electric Heat Wiring 50P030 100 Units Shown ...
Page 135: ...135 Fig 24 Typical Power Wiring 115 V ...
Page 136: ...136 Fig 25 Typical Gas Heat Section Size 030 050 Units Shown ...
Page 138: ...138 Fig 27 Component Arrangement Size 030 035 Units ...
Page 139: ...139 Fig 28 Component Arrangement Size 040 075 Units ...
Page 140: ...140 Fig 29 Component Arrangement Size 090 100 Units ...