Specifications

13
UNIT SPECIFIC DATA
Applicable Units:
48/50HE, 50HEQ003-- 006 581C, 551C, 549C024--060
48/50HJ, TM, TF004-- 014 581B, 551B036-- 150
50HJQ, TFQ004-- 012 548F, 549F036 --102
580F, 558F036 --151
General
1. For these units, the factory installed smoke detectors are
typically installed as shown below. For horizontal return
applications, the return air sample tube is moved in the field
to extend across the horizontal opening.
2. For applications with a factory installed economizer, the
economizer is modified to incorporate the return air sample
tube. For field installed economizers, the installer may
desire to modify the economizer also; however, the factory
modification does not need to be replicated.
3. Factory provided detectors are wired such that if the unit is
shut down on any other alarm (such as high head pressure)
the detectors will still have power and can still provide a
unit trip function.
4. On units with PremierLinkt and Humidi--MiZert
Adaptive Dehumidification System, it is recommended that
the installing contractor route the two pink DEHUM wires
through one of the smoke controller N.C. auxiliary relays.
C07413
Fig. 13 -- Typical TB -- 4 Wiring Diagram
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