2.3
Installing the Heater
For temperatures where the Telephone Access System operates below 0 °C
(32 °F) at any time, a heater must be installed inside the Universal enclosure as
shown in figure 9.
For additional information refer to LT-653 TH-102 Heater Installation
Instructions.
UNIVERSAL
ENCLOSURE
Figure 9.
To install the heater
1.
2.
Note:
TX3 Telephone Access System Installation and Operation Manual
TH-102 HE ATER
Heater TH-102 Installation Location
Place the TH-102 Heater into the bottom left hand corner of the Universal
enclosure and secure using the two supplied spacers and two hex nuts.
Connect the TH-102 heater to the PS-24 Transformer 24 Vac terminal
screws using a pair of #18 AWG wires.
The transformer must be installed outside the enclosure.
Enclosure Installation
PS-24 TRANSFORMER
18 AWG
24V AC
TWISTED PAIR
120V AC
60 HZ
27
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