Page 3
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.
KDB units have 2, 3, 4, and 5-ton cooling capacities.
Units are available in three gas heating inputs.
KDB036, 048, and 060 3-phase units are equipped with
two-speed, belt or direct drive supply air blowers.
KDB024, 036, 048 and 060 1-phase units are equipped
with variable speed, direct drive blowers. These units will
provide supply air at lower speeds when cooling demand
is low and increase to higher speeds when cooling
demand is high. Refer to Blower Operation section.
Availability of units and options varies by brand.
Requirements
The KDB unit is ETL/CSA certified for outdoor
installations only at the clearances to combustible
materials listed on unit nameplate and in figure 1.
Installation of KDB dual fuel 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.
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
UNIT CLEARANCES
FIGURE 1
C
D
B
A
1Unit
Clearance
A
in.(mm)
B
in.(mm)
C
in.(mm)
D
in.(mm)
Top
Clearance
Service
Clearance
36
(1524)
36
(914)
36
(914)
36
(914)
Unob
structed
Clearance to
Combustibles
36
(914)
1
(25)
1
(25)
1
(25)
Unob
structed
Minimum Opera
tion Clearance
36
(914)
36
(914)
36
(914)
36
(914)
Unob
structed
Note - Entire perimeter of unit base requires support when elevated above
mounting surface.
1
Service Clearance
- Required for removal of serviceable parts.
Clearance to Combustibles
- Required clearance to combustible
material.
Minimum Operation Clearance
- Required clearance for proper unit operation.
WARNING
Electric shock hazard and danger of
explosion. Can cause injury, death or
product or property damage. Turn off
gas and electrical power to unit before
performing any maintenance or
servicing operations on the unit. Follow
lighting instructions attached to unit
when putting unit back into operation
and after service or maintenance.
The KDB unit is ETL/CSA certified as a dual fuel heat
pump with cooling and auxiliary gas heat for
non-residential use only at the clearances to combustible
materials as listed on the unit nameplate and in figure 1.
Installation of ETL/CSA certified units must conform with
current standard C273.5 “Installation Requirements for
Heat Pumps” and applicable local codes. Authorities
having jurisdiction should be consulted before
installation.
