34
Disconnect field power supply
1. Disconnect power to the unit. Lock- out/tag- out on
unit disconnect switch.
2. Remove the outdoor access panel, control box cover,
and indoor access panels from the unit. Save screws
(See Fig. 37, 38, and 39).
3. Use a voltmeter to check that no power is present at
unit terminal block.
DISCONNECT MOUNTING
LOCATION
UNIT BLOCK-OFF
OUTDOOR
PANEL
ACCESS PANEL
INDOOR
ACCESS
PANEL
MAX. TEMP/
STATIC LABEL
Fig. 37 - Typical Access Panel Location
UNIT
BLOCK-OFF
DISCONNECT MOUNTING
LOCATION
OUTDOOR
PANEL
ACCESS PANEL
INDOOR
ACCESS
PANEL
MAX. TEMP/
STATIC LABEL
Fig. 38 - Typical Access Panel Location
MOUNTING
HE
TER
BRACKET
MODULE
HEATER
(LOCATION 2)
HEATER
MODULE
(LOCATION 1)
COVERS
HEATER
SINGLE POINT BOX
(NOT SHIPPED WITH
UNIT)
MAIN
CONTROL
BOX
CENTER
POST
Fig. 39 - Typical Component Loc ation
4. Remove control box cover and c enter post. Save
screws (See Fig. 39).
5. Add seal strip to the rear bot tom corner of the control
panel as shown in Fig. 40. Foil tape open screw holes
on the ba ck of the singl e point box as shown in Fig.
40. Different single point boxes will have different
screw holes open.
6. All bushings i n the area of the control box where the
single point box (SPB) mounts must be removed prior
to securing the SPB to the control box (See Fig. 41).
Also, for units insta lled in the snow belt, all
unplugged holes in the bottom of the control box,
which are not used must be plugged before installing
the SPB. Use foil tape or reinstall the bushings from
the outside of the control box prior to securing t he
SPB (See Fig. 42).
7. Remove the single point box cover. Secure single
point box to the underside of the control box with the
two screws provided. Re- install bushing on the SPB
tap conductors (See Fig. 36).
8. Secure the rain shield (conduit drip boot bracket)
assembly to the back of the single point box with 2 of
the screws provided. The channel portion of the
bracke t assembly extends to the top panel behind the
control box. Secure all wires to bracket with
field- supplied wire tie as shown (See Fig. 43).
Seal Bottom Corner
Seal Back Corner
Foil Tape Locations
Fig. 40 - Seal Strip and Foil Tape Location
40QQ
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