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26
UNITS WITHOUT FACTORY-INSTALLED NON-FUSED
DISCONNECT OR HACR
When installing units, provide a disconnect switch of adequate
size per NEC (National Electrical Code). Disconnect sizing data is
provided on the unit informative plate. Locate on unit cabinet or
within sight of the unit per national or local codes. Do not cover
unit informative plate if mounting the disconnect on the unit
cabinet.
UNITS WITH FACTORY-INSTALLED NON-FUSED
DISCONNECT OR HACR
The factory-installed option non-fused disconnect (NFD) switch
(see Fig. 40) or HACR (see Fig. 42) is located in a weatherproof
enclosure located under the main control box. The manual switch
handle is shipped in the disconnect or HACR enclosure. Assemble
the shaft and handle to the switch or HACR at this point. Discard
the factory test leads (see Fig. 39). The factory disconnect is either
an 80A or 100A depending on the unit voltage, indoor motor and
options.
Fig. 39 —
Power Wiring Connections
Fig. 40 —
Location of Non-Fused Disconnect
Enclosure
To field install the NFD shaft and handle
1. Remove the unit front panel (see Fig. 2 and 3).
2. Remove (3) hex screws on the NFD enclosure - (2) on the
face of the cover and (1) on the bottom (see Fig. 41).
3. Remove the front cover of the NFD enclosure.
4. Make sure the NFD shipped from the factory is at OFF
position (the arrow on the black handle knob is at OFF).
5. Insert the shaft with the cross pin on the top of the shaft in
the horizontal position.
6. Measure the tip of the shaft to the top surface of the
pointer to be 3.75 to 3.88 in. (95 to 99 mm) for 80A and
100A NFD and 3.43 to 3.56 in. (87 to 90 mm) for 200A
NFD.
7. Tighten the locking screw to secure the shaft to the NFD.
8. Turn the handle to the OFF position with red arrow point
-
ing at OFF.
9. Install the handle on to the painted cover horizontally with
the red arrow pointing to the left.
10. Secure the handle to the painted cover with (2) screws and
lock washers supplied.
11. Engaging the shaft into the handle socket, re-install (3)
hex screws on the NFD enclosure.
12. Re-install the unit front panel.
Disconnect
per
NEC
11
12
13
L1
L2
L3
TB1
208/230-3-60
460-3-60
575-3-60
Units Without Disconnect or HACR Option
Units With Disconnect or HACR Option
L1
L2
L3
2
4
6
1
5
Optional
Disconnect
Switch
or HACR
Disconnect factory test leads; discard.
Factory
Wiring
3
Ground
(GR)
Equip
GR Lug
Equip GR Lug
Ground
(GR)
Summary of Contents for 48LC Series
Page 5: ...5 Fig 2 Unit Dimensional Drawing Size 08 Unit ...
Page 6: ...6 Fig 2 Unit Dimensional Drawing Size 08 Unit cont ...
Page 7: ...7 Fig 3 Unit Dimensional Drawing Size 09 and 12 Units ...
Page 8: ...8 Fig 3 Unit Dimensional Drawing Size 09 and 12 Units cont ...
Page 11: ...11 Fig 6 Roof Curb Details Size 08 12 Units ...
Page 21: ...21 Fig 34 48LC 08 12 Electro mechanical Control Wiring Diagram ...
Page 22: ...22 Fig 35 48LC 08 12 RTU Open Control Wiring Diagram ...
Page 23: ...23 Fig 36 48LC 08 12 SystemVu Control Wiring Diagram ...
Page 25: ...25 Fig 38 48LC 08 12 Typical Power Wiring Diagram SystemVu Control 208 230 v Unit Shown ...
Page 61: ......