Johnson Controls 100 Series User Manual

JOHNSON CONTROLS
99
SECTION 5 – SEQUENCE OF OPERATION
FORM 100.50-NOM12
ISSUE DATE: 04/02/2019
5
VENTILATION
• The Series 100 unit has several different factory
options for fresh air ventilation and two different
control options.
• Ventilation is active whenever the Series 100 unit
is in the Occ mode and the supply fan is running.
• Ventilation is a completely different sequence than
the economizer. The economizer sequence is only
used when the unit is in an Active Cooling mode.
• When the Series 100 unit enters an Active Cool-
ing mode, the economizer can override the maxi-
mum outside air damper position if more outside
air is needed to satisfy the active cooling SAT
setpoint. The economizer cannot drive the out-
side air damper below the minimum outside air
damper setpoint.
Ventilation Types (Damper Hardware)
• The ventilation types are called Damper Hard-
ware in the PROGRAM menu.
• The damper hardware setting determines which
type of ventilation system is installed in the unit.
• The Series 100 has three different options for
damper hardware:
1. 2 Position Damper
2. Standard Damper
3. TEK-Air Full IAQ
The Rev D Series 100 units had three dif-
ferent options for an IAQ station. Those
options are still shown in software, but are
not applicable to the Rev G units.
Control Options
1. Fixed Minimum
• The outside air dampers are controlled to
a fixed position depending on the damper
hardware selected
2. Demand Ventilation
• The unit was ordered with optional CO
2
sen-
sors.
• The IPU board monitors the indoor and out-
door CO
2
values. When the indoor CO
2
level
becomes greater than the outdoor CO
2
level
plus the CO
2
offset setpoint, demand ventila-
tion becomes active.
• The outside air dampers modulates open/
closed based on the ventilation demand.
Ventilation Setup
• Damper hardware is set in the OPTIONS-VENTI-
LATION menu.
• Set whether there are CO
2
sensors installed or not
installed in the OPTIONS-VENTILATION menu.
• Ventilation sequence is User Enabled/User Disabled
in the PROGRAM-VENTILATION menu.
• Control type is set in the PROGRAM-VENTILA-
TION menu.
2 Position Damper
• Ventilation system must be User Enabled set in the
PROGRAM-VENTILATION menu.
• Damper hardware must be set to 2 Position under
the OPTIONS-VENTILATION menu.
• 2 position damper only works with fixed mini-
mum control type.
• When the ventilation system is active, the IPU
board sends a 10 VDC signal to the outside air
damper actuator.
• When the ventilation system is inactive, the IPU
board removes the 10 VDC signal from the out-
side air damper actuator.
• The amount of outside air can be adjusted by ad-
justing the outside air damper linkages.
Standard Damper
• Standard damper can be used with either xed
minimum or demand ventilation control types.
• When damper hardware is set to standard with
xed minimum, the position of the outside air
damper is determined by the supply fan speed.
• When damper hardware is set to standard with de-
mand ventilation, the position of the outside air
damper is determined by the ventilation demand.
• Outside air damper minimum and maximum posi-
tions must be set in the SETPOINTS-VENTILA-
TION menu.

Johnson Controls 100 Series Specifications

General

Brand	Johnson Controls
Model	100 Series
Category	Air Conditioner
Language	English