23
30 minutes of occupied operation, up to 150 minutes. Requires a
ZS plus or pro zone sensor. The following settings are available:
• Off - push button occupancy override disabled
• On - push button occupancy override enabled
ZONE SETPOINT ADJUST TECH SETUP
Allows a zone sensor with set point adjustment to adjust the
zone air temperature set point. Requires a zone sensor option to
be selected.
• Off - zone set point adjustment disabled
• On - zone set point adjustment enabled
SETPOINT ADJUST LIMIT (+/-)
Set a limit to how far above or below set point the set point over
-
ride can adjust. The setpoint adjust range is ±1°F to ±5°F.
NIGHT SET BACK (NSB) OPTION
Night Setback operation (ETO). Allows a 62X to condition the
space using recirculated air during unoccupied mode. Requires a
return air damper. Used with systems like induction beams that re
-
quire 62X airflow for space conditioning. The following settings
are available:
• None - night setback operation disabled
• NSB Cooling - unit will perform unoccupied cooling oper
-
ation using return air (requires zone air temp sensor).
• NSB Dehum - unit will perform unoccupied dehumidifica
-
tion operation using return air (requires zone air RH sensor).
• NSB Heating - unit will perform unoccupied heating oper
-
ation using return air (requires zone air temp sensor).
MISC OPTIONS A
Used for safety control options, including:
• None - no options (not used on 62X)
• CFI - clogged filter indicator (used on all 62X units)
• COS - condensate overflow switch (used on all 62X units)
• SD - smoke detector. Used on 62X with factory installed re
-
turn air smoke detector or for field supplied smoke detector
MISC OPTIONS B
Used for shutdown/occupancy control options, including:
• None - no shutdown options
• EMR - unit to have energy management relay (EMR) func
-
tionality. Normal occupancy control to be followed when
the relay is closed (UI-15 of expander module). Unit to enter
unoccupied mode when the relay is open, after normal shut
-
down procedure (typical 2-minute shutdown). Normal oper
-
ation is restored when the relay closes. See below for wiring
and relay requirements.
• EMSD - unit to have emergency shutdown relay and EMSD
functionality. Normal occupancy control to be followed
when the relay is closed (UI-15). Unit to enter emergency
shutdown mode, shortly after the relay is open. Normal op
-
eration is restored when the relay closes. See below for wir
-
ing and relay requirements.
• S/S Switch - unit to have start/stop switch for occupancy
control. Unit to be in occupied mode when switch (relay) is
closed, unoccupied mode when switch (relay) is open. Oc
-
cupancy control must be set to S/S Switch for operation. See
Occupancy Control (
Home
Setup
Tech. Setup
) to en
-
able S/S Switch control and for switch wiring.
EMR/EMSD Wiring
Field provided EMR/EMSD relay must be wired to UI-15 of the
expander module. When the relay is closed (contact closure), the
unit operation is enabled. When the relay is open (contact open),
the unit enters emergency shutdown mode and is disabled
(EMSR) or the unit enters unoccupied mode (EMR) and goes
through the typical shutdown process. See Fig. 30.
Fig. 30 — EMR Relay Wiring
Tech Settings
The tech settings screen (
Home
Setup
Tech. Setup
) displays
technical settings information for the unit and contains set points
related to control and component operation. See Fig. 31.
Fig. 31 — Tech Setup
The following settings change be adjusted in the tech setup:
OCCUPANCY CONTROL
Determines the operation of the unit between occupied and unoc
-
cupied/disabled mode.
• BAS control - occupancy will be determined by an external
building automation system and communicated to the unit.
• Local schedule - occupancy will be determined by a sched
-
ule set up in the local unit control
• 24/7 operation - unit will operate in occupied mode continu
-
ously
• S/S switch - unit will determine occupied/unoccupied mode
based on a start/stop switch. The switch must be wired to
UI-12 of the unit controller. The unit will be in occupied
mode if the switch is closed (contact closed). The unit will
enter unoccupied mode if the switch is opened (contact
open). See Misc. Options B under Unit Control Config
(
Home
Setup
Unit Config.
) for additional configura
-
tion needed for S/S Switch. See Fig. 32 for wiring and relay/
switch details
Fig. 32 — S/S Relay Wiring