Johnson Controls 100 Series Manual

JOHNSON CONTROLS
32
FORM 100.50-SU8
ISSUE DATE: 1/28/2016
SECTION 11 - SERIES 100: FLEXSYS OPERATION
Active Slab Control
This sequence allows heat to be turned ON during a
transition from one occupancy state to another if the
underfloor air temperature is higher than the undefloor
slab temp.
• Unit MUST have heat installed.
• Heating System MUST be User Enabled.
• Active Slab Control MUST be User Enabled.
• MUSThaveanunderoorslabtemperaturesen-
sor installed. (Field provided and eld wired to
CTB1. Can also be communicated from the BAS.)
The unit display shows the Heating Sys-
tem Status as Inactive while in Active Slab
Control. The Supply System Status shows
as Active.
Unoccupied to Occupied
• UnitcontrollercheckstheUnderoorSlabTemp
immediately after switching from Unoccupied to
Occupied Standby (if the unit controller calls from
Occupied Cooling with or without Bypass during
this time, Active Slab Control will be terminated).
• If Underoor Slab Temp ≤ the MX SAT SP –
2.0 °F,theUnderoorTempOverridewillbecome
Active.
• UnderoorTempControlissettoMXSATSP+
10.0 °F.
• Unit Controller will generate a call for heat
a. If staged heat (staged gas or electric), unit
controller will start the first stage of heat
b. If modulating heat (modulating gas or hot
water/steam), unit controller will control the
SAT to the Underfloor Temp Control SP
• Heating operation will continue until
a. TheUnderfloorSlabTemp≥theMXSATSP
OR
b. 20 minutes time has elapsed
Occupied to Unoccupied Mode
• UnitcontrollercheckstheUnderoorSlabTemp
immediately after switching from an Occupied
mode to Unoccupied Standby.
• IftheUnderoorSlabTemp>theRAT–2.0°F,
UnderoorTempOverridewillbecomeActive.
• TheUnderoorTempControlSPissettotheRAT
SP + 10.0 °F.
• Unit Controller will generate a call for heat
a. If staged heat (staged gas or electric), unit
controller will start the first stage of heat
b. If modulating heat (modulating gas or hot
water/steam), unit controller will control the
SAT to the Underfloor Temp Control SP
• Heating operation will continue until
a. The Underfloor Slab Temp > RAT + 1.0 °F
OR
b. 20 minutes time has elapsed
FLEXSYS: ALL OTHER SEQUENCES
The other sequences of operation for a Flexsys unit will
follow the same procedures as a VAV configured unit.
FLEXSYS: BACNET POINTS
See Table 2 on page 49.

Johnson Controls 100 Series Specifications

General

Brand	Johnson Controls
Model	100 Series
Category	Air Conditioner
Language	English