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If the field disconnect is larger than 100A, it must be attached to
the unit using accessory CRDISBKT001A00 — disconnect
switch bracket (see Fig. 31). Follow the instructions provided
with this accessory. For smaller field disconnects, be sure to use
1
/
2
-in. screws to mount the disconnect directly to the end panel
(see Fig. 32). In either case, set the disconnect vertical location
on the unit so that a 90 degree fitting can be used to connect the
conduit to the disconnect.
Fig. 29 —
Conduit into Factory Option Non-Fused
Disconnect (NFD) or HACR
Fig. 30 —
Conduit into Control Box
Fig. 31 —
Mounting Position for Field Disconnects
(over 100A)
Fig. 32 —
Mounting Position for Field Disconnects
(up to 100A)
Field power wires are connected to the unit at line-side pressure
lugs at the main terminal block (TB1) or at factory-installed option
non-fused disconnect switch or HACR. Refer to Table 7 for maxi
-
mum wire size at connection lugs. Use copper wire only. See
Fig. 33.
NOTE: TEST LEADS - Unit may be equipped with short leads
(pigtails) on the field line connection points off the optional non-
fused disconnect switch or HACR. These leads are for factory run-
test purposes only; remove and discard before connecting field
power wires to unit connection points. Make field power connec
-
tions directly to line connection pressure lugs only.
Table 7 —
Connection Lug Min/Max Wire Sizes
MINIMUM
MAXIMUM
TB1 in unit control box
#14
#1
80A Disconnect Option
#14
#4
100A Disconnect Option
#8
1/0
25A HACR Option
#14
1/0
30A HACR Option
#14
1/0
35A HACR Option
#14
1/0
40A HACR Option
#14
1/0
50A HACR Option
#14
1/0
60A HACR Option
#14
1/0
70A HACR Option
#14
1/0
80A HACR Option
#14
1/0
90A HACR Option
#14
1/0
100A HACR Option
#14
1/0
WARNING
FIRE HAZARD
Failure to follow this warning could result in personal injury,
death, or property damage.
Do not connect aluminum wire between disconnect switch and
unit. Use only copper wire.
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: ......