18
Field-Install the HACR Shaft and Handle
1. Remove unit front panel (see Fig. 2).
2. Remove (3) hex screws on the HACR enclosure — (2)
on the face of the cover and (1) on the left side cover. See
Fig. 30.
3. Remove the front cover of the HACR enclosure.
4. Make sure the HACR shipped from the factory is at OFF
position (the white arrow pointing at OFF).
5. Insert the shaft all the way with the cross pin on the top
of the shaft in the horizontal position. See Fig. 31.
6. Tighten the locking screw to secure the shaft to the
HACR.
7. Turn the handle to the OFF position with red arrow
pointing at OFF.
8. Install the handle on to the painted cover horizontally
with the red arrow pointing to the left.
9. Secure the handle to the painted cover with (2) screws
and lock washers supplied.
10. Engaging the shaft into the handle socket, re-install (3)
hex screws on the HACR enclosure.
11. Re-install the unit front panel.
Fig. 30 — HACR Enclosure Location
Fig. 31 — HACR Handle and Shaft Assembly
UNITS WITHOUT FACTORY-INSTALLED NON-FUSED
DISCONNECT OR HACR
When installing units, provide a disconnect switch per
NEC (National Electrical Code) of adequate size. 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.
ALL UNITS
All field wiring must comply with NEC and all local
codes. Size wire based on MCA (Minimum Circuit Amps) on
the unit informative plate. See Fig. 26 and the unit label dia-
gram for power wiring connections to the unit power terminal
blocks and equipment ground. Maximum wire size is #2ga
AWG (copper only) per pole on contactors. See Fig. 26 and
unit label diagram for field power wiring connections.
Provide a ground fault and short circuit over-current pro-
tection device (fuse or breaker) per NEC Article 440 (or local
codes). Refer to unit informative data plate for MOCP (Maxi-
mum Over-Current Protection) device size.
NOTE: Units ordered with factory installed HACR do not need
an additional ground fault and short circuit over-current protec-
tive device unless required by local codes.
All field wiring must comply with the NEC and local
requirements.
All units except 208/230v units are factory wired for the
voltage shown on the nameplate.
If the 208/230v unit is to be
connected to a 208v power supply, the control transformer
must be rewired by moving the black wire with the
1
/
4
-in. fe-
male spade connector from the 230v connection and moving
it to the 200v
1
/
4
-in. male terminal on the primary side of the
transformer. Refer to unit label diagram for additional infor-
mation. Field power wires will be connected at line-side pres-
sure lugs on the power terminal block or at factory-installed
option non-fused disconnect.
NOTE: Check all factory and field electrical connections for
tightness.
CONVENIENCE OUTLETS
Two types of convenience outlets are offered on 48KC
models: non-powered and unit-powered. Both types provide a
125-volt GFCI (ground-fault circuit interrupter) duplex re-
ceptacle rated at 15A behind a hinged waterproof access cov-
er, located on the end panel of the unit. See Fig. 32.
NOTE: Unit powered convenience outlets are not available as
factory-installed options for single phase (-3 voltage code
models).
WARNING
Failure to follow this caution could result in personal injury
or death.
Units with convenience outlet circuits may use multi-
ple disconnects. Check convenience outlet for power sta-
tus before opening unit for service. Locate its disconnect
switch, if appropriate, and open it. Lock-out and tag-out
this switch, if necessary.
Summary of Contents for WeatherMaker 48KC Series
Page 4: ...4 Fig 2 Unit Dimensional Drawing ...
Page 5: ...5 Fig 2 Unit Dimensional Drawing cont ...
Page 23: ...23 Fig 41 Typical Humidi MiZer Adaptive Dehumidification System Humidistat Wiring ...
Page 25: ...25 Fig 43 Typical Control Wiring Diagram Electro Mechanical with W7212 ...
Page 26: ...26 Fig 44 Typical 48KC 04 06 Power Wiring Diagram 208 230 3 60 Unit Shown ...