6
R
ep
lac
eme
n
t T
he
rmo
sta
ts
/ S
ta
rt
-u
p
D.
REPLACEMENT THERMOSTATS
Part No.
Wiring Diagram (Figure 8)
1Ø
3Ø
XB3-6300T3
Fig. 3
Fig 4
XB3-6276T3
XB3-6252T3
XB3-4250T3
XB3-4230T3
XB3-6225T3B
XB3-4210T3
XB3-6207T3B
XB3-6189T3B
XB3-4150T3B
XB3-4138T3B
XB3-4126T3B
XB2-4100T3B
Fig. 2
-
XB2-4092T3B
XB2-4084T3B
XB2-6085T4A
XB2-6078T4A
XB2-6071T4A
XB1-3047T3B
Fig. 1
-
XB1-3043T3B
XB1-3040T3B
CAUTION
CAUTION.
Use approved conduit and conduit seals
as required by hazardous location standards.
E.
START-UP
For heaters with a tamper-proof thermostat, to set
temperature, disconnect the power and remove the socket
head cap screw. Set the thermostat to the desired room
temperature with a screw driver and replace cap screw.
1.
For heaters with an externally adjustable thermostat,
set thermostat to desired temperature by adjusting
the dial.
NOTE: The thermostat temperature range is -18° to 40°C (0°
to 100°F) with an operating differential of 3 to 4°C (5
to 7°F).
2.
Install the terminal box cover and tighten securely.
3.
Check to ensure that all plugs, screws, and covers are
securely in place.
4.
Check associated electrical equipment.
5.
Check that all wall/floor mounting bracket
connections are tight.
6.
Turn on the supply power.
WARNING
WARNING.
To prevent unsafe operation of the
heater do no exceed the maximum allowable
ambient operating temperature of 40°C (104°F)
WARNING
WARNING.
Whenever hazardous materials are
present, ensure that the terminal housing covers,
plug, etc., are secured (but not over-tightened)
before energizing
the heater.
CAUTION
CAUTION.
Use supply wires suitable for 105°C
(221°F). Supply wires are to be fused with
appropriately sized HRC fusing.
CAUTION
CAUTION.
All circuits must be in the open position
before removing junction or terminal box covers.
CAUTION
CAUTION.
Ensure that no power is connected to
the equipment prior to making any connections.
