Specifications

McQuay IM 846 3
Installation Instructions
Installation Instructions
Thermostat Model and Part Number
McQuay offers two different thermostats depending on the fan
speed control used (Table 2).
Table 1: Thermostat model and part numbers
Note – For a list of thermostat features, refer to ED 3611.
Optional Occupancy Detection Sensors/Kits
In addition to the T170 thermostat, McQuay offers optional
occupancy detection sensors (see page 9) that can be ordered
and used in conjunction with the thermostat. When ordering,
use the associated kit number(s) provided in Table 2.
Table 2: Occupancy sensor model and kit numbers
Mounting and Wiring the Thermostat
The thermostat base mounts to a field provided 4″ × 4″ outlet
box with a 2
″ × 4″ mud ring (Figure 1). The thermostat cover
assembly mounts to the thermostat base.
Figure 1: Mounting the thermostat
1
Disconnect power before installing or servicing.
2 Run line voltage wiring (and low voltage wiring if
applicable) into the field provided outlet box and mud ring
(Figure 1).
3 Locate all connections within the mud ring/connection box
and wire nut all unused wires.
4 Remove the thermostat cover assembly from its base to
gain access to the circuit board (Figure 2).
Figure 2: Circuit board
WARNING
• BEFORE ATTEMPTING TO INSTALL, OPERATE, OR
SERVICE THIS THERMOSTAT, CAREFULLY READ
THESE INSTRUCTIONS.
• Failure to observe safety information and comply with
instructions could result in PERSONAL INJURY, DEATH,
AND/OR PROPERTY DAMAGE.
• To avoid potential fire and/or explosion, do not use in
potentially flammable or explosive atmospheres.
• Retain these instructions for future reference. This product,
when installed, is part of an engineered system whose
specifications and performance characteristics are not
designed or controlled by McQuay. You must review your
application and national and local codes to assure that your
installation is functional and safe.
DANGER
Hazardous voltage. To avoid electrical shock or damage to
equipment, disconnect power before installing or servicing.
Failure to follow these instructions will result in death or serious
injury.
Thermostat Model # McQuay Part # Fan Speed Control
TA170-001 107345335 3-Speed Fan Control
TB170-001 107345336 Staged Fan
Sensor Model # McQuay Kit #
SA200-001 6677877211
SB200-001 6677877311
SD200-001 6677877411
SB200-002 6677877511
2 × 4 mud ring
Cover locking snaps
(both sides)
Base
Cover assembly
CAUTION
To avoid damaging the unit,
make all wiring connections
inside the box.
4 × 4 outlet box