General
Read all sections of this manual and keep the manual
for future reference.
WARNING: Cancer and Reproductive Harm –
www.P65Warnings.ca.gov.
The units are tested in accordance with the following:
The outdoor units are designed to be connected to a
matching indoor coil with sweat connect lines. This unit
is to be matched with one ducted indoor unit and is not
designed for application in a ductless configuration.
Refer to the Technical Guide for permissible system
configurations. Sweat connect units are factory charged
with refrigerant for a nominal sized matching indoor coil
plus 15 ft of field-supplied lines.
Safety
Read these safety precautions carefully to ensure correct
installation.
Note the following:
• You must match the outdoor unit with an indoor unit
with refrigerant R-410A.
• Use the specified filter drier on the liquid pipe when
connecting the units.
• Carefully file the indoor and outdoor unit manuals
away for future reference.
Understand and pay particular attention to the signal
words DANGER, WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation,
which, if not avoided, will result in death or serious
injury.
WARNING indicates a potentially hazardous situation,
which, if not avoided, could result in death or serious
injury.
CAUTION indicates a potentially hazardous situation,
which, if not avoided may result in minor or moderate
injury. It is also used to alert against unsafe practices and
hazards involving only property damage.
WARNING
Incorrect installation may create a condition where the
operation of the product could cause personal injury
or property damage. Incorrect installation, adjustment,
alteration, service, or maintenance can cause injury
or property damage. Refer to this installation manual
for assistance or for additional information, consult a
qualified contractor, installer, or service agency.
CAUTION
This heat pump uses R-410A refrigerant. R-410A
systems operate at higher pressures than R-22
systems. Do not use R-22 service equipment
or components on R-410A equipment. Service
equipment must be rated for R-410A.
CAUTION
This product must be installed in strict compliance
with the enclosed installation instructions and any
applicable local, state, and national codes including,
but not limited to building, electrical, and mechanical
codes.
Inspection
Inspect the unit immediately after receiving it for possible
damage during transit, including copper distributor lines
that may have shifted and are touching either copper
lines or the cabinet. If damage is evident, the extent of the
damage must be noted on the carrier’s delivery receipt.
A separate request for inspection by the carrier’s agent
must be made in writing. Contact the local distributor for
more information.
Requirements for installing or servicing R-410A
equipment
• Gauge sets, hoses, refrigerant containers, and
recovery system must be designed to handle the POE
type oils, and the higher pressures of R-410A.
• Manifold sets must be high side and low side with
low side retard.
• All hoses must have a 700 psig service pressure
rating.
• Leak detectors must be designed to detect HFC
refrigerant.
• Recovery equipment (including refrigerant recovery
containers) must be specifically designed to handle
R-410A.
Installation Manual: HMH7 Series - 17 SEER Horizontal Discharge Modulating Heat Pump 5
Johnson Controls Ducted Systems
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