Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480350-01
Printed in U.S.A.
Form IIK-CRPWREXH068-05
Pg 1
6-22
Replaces: IIK-CRPWREX068-04
Installation Instructions
Part No. CRPWREXH068A00, CRPWREXH069A00, CRPWREXH070A00
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Power and Control Wiring . . . . . . . . . . . . . . . . . . . . . 3
Power Exhaust Installation for Vertical Return Air
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Power Exhaust Installation for Horizontal Return Air
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
POWER EXHAUST FUNCTIONAL CHECK . . . . . . . . 7
For Units with EconoMi$er IV Controls
(HH63AW001-W7212 Honeywell Controller) . . . . . 7
For Units with W7220 Economizer . . . . . . . . . . . . . . 8
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can be
hazardous due to system pressure and electrical components. Only
trained and qualified service personnel should install, repair, or
service air-conditioning equipment.
Untrained personnel can perform basic maintenance functions of
cleaning coils and filters and replacing filters. All other operations
should be performed by trained service personnel. When working
on air-conditioning equipment, observe precautions in the
literature, tags and labels attached to the unit, and other safety
precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloth for unbrazing operations. Have fire extinguisher
available for all brazing operations.
It is important to recognize safety information. This is the safety-
alert symbol
. When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for personal
injury.
Understand the signal words DANGER, WARNING, CAUTION,
and NOTE. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which
will
result in
severe personal injury or death. WARNING signifies hazards
which
could
result in personal injury or death. CAUTION is used
to identify unsafe practices, which
may
result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which
will
result in enhanced installation, reliability,
or operation.
GENERAL
The power exhaust accessory is for use in both vertical and hori
-
zontal return air duct applications.
Confirm that the power exhaust package part number on the crate
matches the unit size and voltage of the unit per Tables 1 and 2.
Consult product literature for the economizer accessory if the unit
is not already equipped.
Refer to Table 3 for a complete list of parts contained in each pow
-
er exhaust kit.
The power exhaust hood assembly has 2 power exhaust blowers.
Return block-off panels, support bracket, screws, relay and wiring
harness are also included in the package.
IMPORTANT: Read these instructions completely before
attempting to install this accessory.
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
and/or death.
Before beginning any modification, disconnect power supply
and install lockout tag before attempting to install the
accessory. All wiring must comply with applicable national
and local codes.
CAUTION
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in damage to
equipment.
When removing panels from the unit, be careful not to damage
the roof or other surfaces with the panels.
IMPORTANT: The power exhaust accessory requires the use of
the economizer. Power Exhaust will not operate without the use
of an economizer.
Power Exhaust Accessory
Single Package Rooftop Units
Select 12.5 to 27.5 Ton Units
