Controls Quick Start; Vav Units Using Return Air Sensor Or Space Temperature Sensor; Multi-Stage Cv Units With Mechanical Thermostat; Multi-Stage Cv Units With Space Sensor - Carrier Weathermaster 48P2030-100 Controls, Start-Up, Operation, Service, And Troubleshooting

CONTROLS QUICK START

The following section will provide a quick user guide to setting
up and configuring the P Series units with ComfortLink con-
trols. See Basic Control Usage section on page 4 for informa-
tion on operating the control.
VAV Units Using Return Air Sensor or Space
Temperature Sensor
To configure the unit, perform the following:
1. The type of control is configured under Configuration

UNIT C.TYP. Set C.TYP to 1 (VAV-RAT) for return air
sensor. Set C.TYP to 2 (VAV-SPT) for space temperature
sensor.
NOTE: For VAV with a space sensor (VAV-SPT), under Configu-
  
ration UNIT SENS SPT.S, enable the space sensor by set-
ting SPT.S to ENBL.
NOTE: Configuration of the machine control type (C.TYP) has
no effect on whether a unit has a VFD or just a supply fan in-
stalled for static pressure control. No matter what the control
type is, it is possible to run the unit in either CV or VAV mode,
provided there are enough stages to accommodate lower air vol-
umes for VAV operation. Refer to the section on static pressure
control for information on how to set up the unit for the type of
supply fan control desired.
2. The space temperature set points and the supply air set
points are configured under the Setpoints menu. The heat-
ing and cooling set points must be configured. See the
Heating Control and Cooling Control sections for further
description on these configurations. Configure the follow-
ing set points:
OHSP Occupied Heat Setpoint
OCSP Occupied Cool Setpoint
UHSP Unoccupied Heat Setpoint
UCSP Unoccupied Cool Setpoint
GAP Heat-Cool Setpoint Gap
V.C.ON VAV Occupied Cool On Delta
V.C.OF VAV Occupied Cool Off Delta
Also configure the following points in the Configuration
D.LV.T menu:
L.H.ON Demand Level Low Heat On
L.H.OF Demand Level Low Heat Off
3. To program time schedules, make sure SCH.N=1 under
 
Configuration CCN
control to use local schedules.

4. Under the Timeclock
schedule. See Time Clock section for further descriptions
of these configurations.
5. Under Configuration
Static Pressure set point should be configured.
6. If supply air temperature reset is desired, under the Con-

figuration EDT.R submenu, the following set points
should be configured:
RS.CF EDT Reset Configuration
RTIO Reset Ratio
LIMT Reset Limit
RES.S EDT 4-20 mA Reset Input
This applies to both TSTAT MULTI and SENSOR MULTI
modes.
NOTE: Configure either RTIO and LIMT or RES.S. Do not use
all three.

SC.OV SCH.N to configure the
SCH.L submenu, enter the desired
 
SP SP.SP, the Supply Duct
7. See the Economizer Options section on page 34 for addi-
tional economizer option configurations.
8. See the Exhaust Options section on page 34 for addition
exhaust option configurations.

Multi-Stage CV Units with Mechanical Thermostat

To configure the unit, perform the following:
1. Under Configuration
(TSTAT MULTI).
 2. Under the Setpoints menu, set the following configurations:
SA.HI Supply Air Set Point Hi
SA.LO Supply Air Set Point Lo
3. See the Economizer Options section on page 34 for addi-
tional economizer option configurations.
4. See the Exhaust Options section on page 34 for additional
exhaust option configurations.

Multi-Stage CV Units with Space Sensor

To configure the unit, perform the following:
1. Under Configuration
(SPT MULTI).
2. Under the Setpoints menu, the following configurations
should be set:
SA.HI Supply Air Set Point Hi
SA.LO Supply Air Set Point Lo
3. Under the Setpoints submenu, the heating and cooling set
points must be configured:
OHSP Occupied Heat Setpoint
OCSP Occupied Cool Setpoint
UHSP Unoccupied Heat Setpoint
UCSP Unoccupied Cool Setpoint
GAP Heat-Cool Setpoint Gap
D.LV.T Cool/Heat Set Point Offsets (located in the
Configuration menu)
4. Under Configuration
the space sensor by setting SPT.S to ENBL.

5. Under Configuration
for continuous fan or 0 for automatic fan.
6. To program time schedules, set SCH.N=1 under Configu-
 
ration CCN
to use local schedules.
7. Under the Timeclock
schedule. See Time Clock section for further descriptions
of these configurations.
8. See the Economizer Options section on page 34 for addi-
tional economizer option configurations.
9. See the Exhaust Options section on page 34 for additional
exhaust option configurations.
33
 
UNIT C.TYP, set C.TYP to 3
 
UNIT C.TYP, set C.TYP to 4
  
UNIT SENS SPT.S, enable
 
UNIT FN.MD, set FN.MD to 1

SC.OV SCH.N to configure the control

SCH.L submenu, enter the desired