Page 3
507111-02 2/2015
Shipping and Packing List
Package 1 of 1 contains:
1 - Assembled unit
Check unit for shipping damage. Receiving party should
contact last carrier immediately if shipping damage is
found.
General
These instructions are intended as a general guide and
do not supersede local codes in any way. Authorities
having jurisdiction should be consulted before
installation.
Availability of units and options varies by brand.
Requirements
The ZH unit is CSA certified as a heat pump with cooling
and with or without auxiliary electric heat for
non-residential use only at the clearances to combustible
materials as listed on the unit nameplate and in figure 1.
Installation of ZH heat pumps must conform with standards
in National Fire Protection Association (NFPA) “Standard
for Installation of Air Conditioning and Ventilating Systems
NFPA No. 90A,” “Standard for Installation of Residence
Type Warm Air Heating and Air conditioning Systems NFPA
No. 90B,” local municipal building codes and
manufacturer's installation instructions.
UNIT CLEARANCES
FIGURE 1
C
D
B
A
HORIZONTAL
OUTDOOR
AIR HOOD
OUTDOOR
AIR HOOD
1Unit
Clearance
A
in.(mm)
B
in.(mm
)
C
in.(mm)
D
in.(mm)
Top
Clearance
Service
Clearance
36
(914)
36
(914)
36*
(914)
36
(914)
Unob
structed
Minimum Opera
tion Clearance
36
(914)
36
(914)
36*
(914)
36
(914)
Unob
structed
*Clearance is 60 in. (1524mm) in horizontal air flow applications.
Note - Entire perimeter of unit base requires support when elevated above
mounting surface.
1
Service Clearance
- Required for removal of serviceable parts.
Minimum Operation Clearance
- Required clearance for proper unit operation.
NOTICE
Roof Damage!
This system contains both refrigerant and oil.
Some rubber roofing material may absorb oil,
causing the rubber to swell. Bubbles in the rubber
roofing material can cause leaks. Protect the roof
surface to avoid exposure to refrigerant and oil
during service and installation. Failure to follow
this notice could result in damage to roof surface.
The National Electric Code (ANSI/NFPA No. 70-1984) is
available from:
National Fire Protection Association
1 Batterymarch Park
PO Box 9101
Quincy, MA 02269-9101
Installation of CSA certified units must also conform with
current standard C273.5 “Installation Requirements for
Heat Pumps” and applicable local codes. Authorities
having jurisdiction should be consulted before
installation.
Use of this unit as a construction heater or air conditioner
is not recommended during any phase of construction.
Very low return air temperatures, harmful vapors and
operation of the unit with clogged or misplaced filters will
damage the unit.
If this unit has been used for heating or cooling of
buildings or structures under construction, the following
conditions must be met or the warranty will be void:
A room thermostat must control the unit. The use of
fixed jumpers that will provide continuous heating or
cooling is not allowed.
A pre-filter must be installed at the entry to the return
air duct.
The return air duct must be provided and sealed to
the unit.
Return air temperature range between 55°F (13°C)
and 80°F (27°C) must be maintained.
Air filters must be replaced and pre-filter must be
removed upon construction completion.
The unit components, duct system, air filters and
evaporator coil must be thoroughly cleaned following
final construction clean-up.
The unit operating conditions (including airflow,
cooling operation, and heating operation) must be
verified according to these installation instructions.
