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The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2015 Johnson Controls, Inc. www.johnsoncontrols.com
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T46 Series Fan Coil Thermostat
Description
The T46 Series Thermostat is used to control
line voltage, fan coil, and heating zone valves
on heating, cooling, and combination heating
and cooling systems. Models are available
with single-pole, single-throw (SPST) or
single-pole, double-throw (SPDT) contact
action for standard duty (nominal 1/4 hp,
6 A non-inductive) applications. Thermostats
are available with or without fan speed control
or built-in thermometers. Various system
switch combinations are available, including
fan speed selection.
Field-installable faceplate combinations of
knob or concealed adjustment are possible.
Also, the T46 is available with or without
thermometer indication. These thermostats
have plastic locking covers with an
Allen-head screw to discourage unauthorized
tampering. Standard models are supplied
with the thermostat faceplate installed with
knob adjustment and thermometer.
Refer to the T46 Series Fan Coil Thermostats
Product Bulletin (LIT-125655) for important
product application information.
Features
• knob or concealed setpoint adjustment
• low and high temperature dial stops that
are concealed and adjustable throughout
setpoint range
• can be set for a locked dial
• narrow differential without the need for
anticipator
• standard internal dual Celsius and
Fahrenheit scales
• switch mechanism and wiring connections
go into the switch box to isolate electrical
circuits from the sensing element
• mounts on a standard double outlet box
• separable mounting plate allows easy
mounting and wiring without removing
thermostat cover
• locking cover reduces unauthorized
tampering
• high-impact plastic enclosure
• smooth action multi-position slide switches
for dependable service
Applications
These thermostats control fan coil and zone
heating valves on a wide variety of heating
and cooling combinations for conditioned
space.
Selection Charts
T46 Series Fan Coil Thermostat
Product Code
Number
System
Switch
Fan
Switch
Heating
T46ABH-1C Auto-off-fan None
T46ADH-1C Off-auto None
Cooling
T46JBH-1C Auto-off-fan None
T46JDH-1C Off-auto None
T46JEA-1C On-off Low-med-high
Heating and Cooling
T46SAA-1C Heat-off-cool Low-med-high
T46SAH-1C Heat-off-cool None
T46SDA-1C Off-auto Low-med-high
T46SDH-1C Off-auto None
Accessories
Replacement Parts
Product Code Number Description
CVR88A-600R Thermostat Cover Assembly for knob adjustment models with thermometer,
°F scale, faceplate supplied unassembled
KNB26A-600R Plastic push on knob for thermostat
BKT48A-600R Mounting plate for T46
Product Code
Number
Faceplate Selection
1
1. Faceplates must be ordered in multiples of ten.
Mounting
Position
Type of
Adjustment
Thermometer
Cutout
Temperature
Scale
PLT333-1R
2
2. Supplied with standard wholesaler models.
Vertical Knob Yes Fahrenheit
PLT333-3R Vertical Concealed Yes Fahrenheit
PLT333-5R Vertical Knob Yes Celsius
PLT333-12R Vertical Concealed No –
Technical Specifications
T46 Series Fan Coil Thermostats
Range Thermostat 40 to 90°F (5 to 30°C)
Thermometer 50 to 90°F (10 to 30°C)
Differential Mechanical Approximately 0.7°F (0.4°C)
Operating See next page
Finish Cover Almond
Faceplate Gold metallic with dark brown border and lettering
Mounting Double gang box, separable mounting plate
Material Base 0.050 in. (1 mm) cold rolled steel
Cover 0.090 in. (2 mm) high-impact plastic
Sensing Element Liquid-filled for positive trouble-free operation
Shipping Weight Individual Pack 1 lb (0.45 kg)
Overpack of 20 Units 20 lb (9.07 kg)
Thermometer Bimetal type for accuracy and clarity, can be field-calibrated
Wiring Connections Color coded No. 16 AWG wires, 8 in. (203 mm) long
T46 Thermostat
Multi-Stage Electromechanical Temperature Controls
Code No. LIT-1922270