Programming the wmvav controller – WattMaster VAV System User Manual
Page 16
Technical Guide
Operator Interfaces
16
Setpoint Screen #2
WMVAV Spts ID 59
Unoccupied Setbacks
Cooling SetUp: xx
°
F
Heating SetBk: xx
°
F
During the unoccupied mode these values will be added to the cooling
setpoint and subtracted from the heating setpoint. These settings are
only used if the controller has been configured to utilize a Space Tem-
perature Sensor.
Description
Minimum
Default
Maximum
Cooling SetUp
0
°
F
10
°
F
30
°
F
Heating SetBk
0
°
F
0
°
F
-30
°
F
Setpoint Screen #3
WMVAV Spts ID 59
HVAC Mode Select
Deadband....: xx.x
°
F
The HVAC Mode Select Deadband is the amount of error from set-
point required to activate the heating or cooling mode of operation.
This assumes the Return Air or Space Temperature are the controlling
sensors. If the Supply Air is the controlling sensor then this setpoint is
not used.
Description
Minimum
Default
Maximum
Deadband
0.1
°
F
1.0
°
F
10.0
°
F
Setpoint Screen #4
WMVAV Spts ID 59
Supply Air Setpoints
Cooling....: xx
°
F
Heating....: xx
°
F
This is the Supply Air Temperature that the HVAC unit will try to main-
tain when in heating or cooling mode. The Heating Supply Air Setpoint
will also be used for the Morning Warm-up Supply Air Temperature.
Description
Minimum
Default
Maximum
Cooling
50
°
F
55
°
F
70
°
F
Heating
60
°
F
140
°
F
200
°
F
Setpoints
System Manager Instructions
From any menu screen press the “Setpoint” key. The unit selection screen
will appear requesting that you enter the unit ID number. Enter the cor-
rect unit ID number of the WMVAV controller you want to change
setpoints for and hit the “Enter” key. You will see the screen shown
below.
1)Change Setpoint
2)Configure Unit
3)Damper Force
ESC) Exit Menu
Press “1” on the keypad to enter the first unit setpoint screen.
Modular Service Tool Instructions
From any menu screen press the “Setpoint” key. The unit selection screen
will appear requesting that you enter the unit ID number. Enter the cor-
rect unit ID number of the WMVAV controller you want to change
setpoints and press the “Enter” key. You will then see setpoint screen
#1.
Setpoint Screen #1
WMVAV Spts ID 59
HVAC Mode Setpoints
Cooling......: xx
°
F
Heating......: xx
°
F
If the controller is configured for Space Temperature, Return Air Tem-
perature or Return Air with Day Heating control, the unit attempts
to maintain these Cooling and Heating setpoints.
If you are using a remote BAS to activate the heating or cooling modes
with contact closures on the binary input board, set these two setpoints
to zero and select the supply air as the controlling sensor.
Description
Minimum
Default
Maximum
Cooling
0
°
F
74
°
F
90
°
F
Heating
0
°
F
65
°
F
90
°
F
Programming The WMVAV Controller