T.a.c. TA-3432 General Instructions Manual - page 2
2
©
Copyright 2008 TAC All Rights Reserved.
F-11302-9
AT-223 BRASS BULB WELL
Construction: Brass.
Connection: 3/4" MNPT.
Dimensions: 7-1/2" (191 mm) insertion length.
PRE-INSTALLATION
Inspection
Inspect the carton for damage. If damaged, notify the
appropriate carrier immediately. Inspect the device for
obvious damage. Return damaged products.
Required Installation Items
•
Wiring diagrams
•
Tools (not provided):
VOM (volt-ohm meter)
Appropriate screwdriver for mounting screws and
terminal connections
•
Appropriate drill and drill bit for mounting screws
•
Appropriate accessories
•
Mounting screws:
(3) #8 x 3/4 sheet metal, provided with extension
mounting bracket with TA-3434 and TC-3413
(2) #8-32 x 3/8" round head, provided for all models
INSTALLATION
Caution:
1. Installer must be a qualified, experienced technician.
2. Make all connections in accordance with the wiring
diagram, and in accordance with national and local
electrical codes. Use copper conductors only.
3. Do not exceed ratings of the device.
Mounting
The thermostats may be mounted in any position. The
sensitive helical bimetal element may be mounted in ducts or,
with optional bulb well, in liquid lines, pipes, tanks, etc.
Duct Installation
1. Cut a 3/4" (19 mm) diameter hole in the duct where the
thermostat is to be located.
2. Remove the cover and carefully insert the bimetal in the
duct opening. Mark position for the two mounting screws
provided and punch or drill holes.
3. Partially insert screws.
4. Insert the bimetal element; rotate the thermostat housing
counterclockwise to engage screw heads in key hole
slots.
5. Straighten thermostat housing and tighten mounting
screws securely.
6. Make electrical connections and replace thermostat
cover.
Duct Installation with Extension Mounting
Bracket
See Figure 2.
Caution:
Extension mounting bracket is required for duct
installation by UL on units where the control range exceeds
180°F (82°C) (typically TC-3413 and TA-3434).
1. Cut a 3/4" (19 mm) diameter hole in the duct where the
thermostat is to be located.
2. Use the extension bracket as a template to mark position
for three mounting holes.
3. Punch or drill holes for the extension bracket.
4. Secure the extension bracket to the duct with the three (3)
#8 x 3/4" screws provided.
5. Partially thread the two #8-32 x 3/8" round head screws
provided into the extension bracket.
6. Remove the cover from the thermostat.
7. Insert the bimetal element into the hole in the duct; rotate
the thermostat housing counterclockwise to engage
screw heads in key hole slots.
Table-2 Specifications for Obsolete Models.
Part
Number
Device Type
Functional
Setpoint
Dial Range
°F (°C)
a
Sensor
Ambient
°F (°C)
Differential
°F (°C)
Switch Type
Voltage
Full
Load
Amps
Locked
Rotor
Amps
Pilot Duty
(VA)
Min.
Max.
TC-3411
b
Low temp.
automatic
reset
0 to 120
(-18 to 49)
-40
(-40)
220
(104)
Adj. 2 to 8 (1
to 4) Factory
set 2 (1)
SPDT
120
3.8
22.8
125
240
1.9
11.4
TC-3413
b
High temp.
automatic
reset
120 to 240
(49 to 116)
20
(-7)
300
(149)
Adj. 2 to 8 (1
to 4) Factory
set 2 (1)
SPDT
120
3.8
22.8
1254
240
1.9
11.4
a
Units dual marked °F and °C.
b
TC-3411 and TC-3413 are not CSA certified.