Johnson Controls 100 Series Manual

JOHNSON CONTROLS
17
FORM 100.50-SU8
ISSUE DATE:1/28/2016
5
Constant Volume (CV) conguration was
discontinued in December of 2015.
The Series 100 with IPU controller can accept thermo-
stat commands from a BAS (Building Automation Sys-
tem). This would allow a unit configured for Constant
Volume to operate without connecting a thermostat to
the unit. This allows a controls engineer to determine
when the unit starts and stops cooling or heating.
The following list describes the different Bacnet points
that can be used in place of a thermostat
• Y1_LOW_COOL_B: AV98 or BV22 (First stage
cooling command)
• Y2_HIGH_COOL_B: AV99 or BV23 (Second
stage cooling command)
• W1_LOW_HEAT_B: AV96 or BV20 (First stage
heating command)
• W2_HIGH_HEAT_B: AV97 or BV21 (Second
stage heating command)
• FAN_G_BAS: AV82 or BV06 (Supply fan com-
mand)
The below points can be used to set the different tem-
perature SP’s for the different unit modes
• STG_1_COOL: AV31 (Y1 command from BAS.
The unit controller will control the compressors
and/or economizer to achieve and maintain this
SP)
• STG_2_COOL: AV33 (Y2 command from BAS.
The unit controller will control the compressors
and/or economizer to achieve and maintain this
SP)
• STG_1_HEAT: AV32 (W1 command from BAS.
The unit controller will control the heating stages
of gas or electric heat or modulate the HW/Steam
valve to achieve and maintain this SP)
• STG_2_HEAT: AV34 (W1 command from BAS.
The unit controller will control the heating stages
of gas or electric heat or modulate the HW/Steam
valve to achieve and maintain this SP)
A unit configured for Constant Volume will not auto-
matically run the supply fan in the Occupied Mode like
a VAV or Flexsys configured unit. Under normal CV
operation, the supply fan will only run with a Y1, Y2,
W1, W2, or G command. Without any of these com-
mands present, the fan will not run. If the control se-
quence calls for the supply fan to run with the unit in
the Occupied Mode, the below Bacnet point will allow
this to happen.
• CONTINU_VENT: AV79 or BV03 (With the
point turned ON, the supply fan will run whenever
the unit is in the Occupied Mode. Turned OFF, the
supply fan will only run with a Y1, Y2, W1, W2,
or G command. 0=OFF 1=ON)
SECTION 5 - COMMANDING THERMOSTAT INPUTS FROM THE BAS

Johnson Controls 100 Series Specifications

General

Brand	Johnson Controls
Model	100 Series
Category	Air Conditioner
Language	English