141
I20683 - Subject to change.
Electronic Accessories
141
ZG-HTR TNF/TAF Thermostat/heater Kit
For TNF/TAF Series Actuators
Application
The ZG-HTR Thermostat/Heater kit is designed to be field
installed to the NF and AF series actuators. The ZG-HTR
provides a thermostatically controlled heater which allows the
NF/AF actuators to be used below their normal low ambient
temperature rating. At approximately 10° F [-12° C] the heater
energizes to maintain the actuators internal temperature to
within working limits. The rubberized heating element has
an adhesive back which attaches to the side of the actuator
housing. The thermostat assembly mounts to the rear of the
actuator and provides for the connection of the 24 VAC supply
voltage. The actuator/heater assembly should be contained in
a housing, similar to the ZS-100 Weather Shield, to achieve
best results.
Technical Data
ZG-HTR
Power supply
24 VAC ± 20% 50/60 Hz
Transformer sizing
35 VA
Heater output
35 watts
Actuator low ambient rating
with enclosure: -40° F [-40° C]
enclosure with
1” insulation:
-58° F [-50° C]
Weight
11 oz [320 g]
ZG-HTR Heater
To 24 VDC
Wiring Box
Thermostat/Cover
Assembly
Wire Nut
3/8” to 3/4”
3/8” to 5/8”
3/4” to 1.05”
Standard:
Optional*
*with K4-1 US
clamp
TAF/TNF
actuator
1/4” Bolt
Hole
ZG-HTR Heater
Wiring Diagram
2
2
3
3
1
1
24 VAC Transformer
Line
Volts
Provide overload protection and disconnect as required.
The ZG-HTR may be wired to the same transformer as
the actuator. Total VA ratings must be observed.
Power to the ZG-HTR must be applied continuously
during the heating season. Do not wire the ZG-HTR to
the on-off control signal when on-off type actuators are
being used.
ZG-HTR
HEATER STRIP
Thermo-
stat
COM
HOT
●
●
●
To other actuators
Dimensions
[All numbers in brackets are in millimeters.]
Содержание TRANE TAF Series
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