Johnson Controls HMH7 Series Guide

6345396-UUM-A-0123
User's Information Manual: HMH7 Series - 17 SEER2
Horizontal Discharge Modulating Heat Pump
General
The units are tested in accordance with the following:
Contact information
To contact us online, go to www.york.com, click Contact
Us, and follow the instructions.
To contact us by mail, use the following address:
Johnson Controls Ducted Systems
Consumer Relations
5005 York Drive
Norman, OK 73069
Safety
Read all sections of this manual and keep the manual
for future reference.
WARNING: Cancer and Reproductive Harm –
www.P65Warnings.ca.gov.
WARNING
This product must be installed and serviced by
a qualified installer or service agency. Improper
installation, adjustment, alteration, service, or
maintenance can cause injury or property damage.
How your system works
Cooling cycle
During the cooling cycle, your system removes heat and
humidity from your home and transfers this heat to the
outdoor air.
Heating cycle (heat pumps)
During the heating cycle, your system removes heat and
humidity from the outdoor air and transfers this heat to
your home. This is possible because even 0°F outdoor air
contains a great deal of heat. Remember that your heat
pump does not generate much heat; it merely transfers it
from one place to another.
System operation
Your thermostat gives you full control of the heating and
cooling levels in your home, and can also allow you to
control these remotely using a smart device. Do not switch
your thermostat on and off rapidly or switch between
the heating and cooling mode of operation rapidly. This
could damage your equipment. Always allow at least 5 min
between changes.
Setting the thermostat
CAUTION
The main power to the system must be kept on
at all times to prevent damage to the outdoor unit
compressor. If necessary, use the thermostat control
switch to turn the system off. Should the main power
be disconnected or interrupted for 8 h or longer, do not
attempt to start the system for 8 h after the power has
been restored to the outdoor unit. If heat is needed
during this 8 h period, use emergency heat.
Thermostat
Your key to comfort
Although thermostats may vary widely in appearance,
they are all designed to perform the same basic function:
to control the operation of your air conditioning or
heat pump system. Regardless of size or shape, each
thermostat features the following:
• a temperature indicator
• a dial, arm, or push button for selection of the required
temperature
• a fan switch to choose the indoor fan operation
• a comfort switch for selection of the system mode of
operation
Note: Only approved thermostats have been tested
and are fully compatible with this equipment. Many
different thermostats operate on batteries or power
stealing principals. These types of thermostats
cannot be supported as trouble-free when used with
this product.
If your system is designed to allow both cooling and
heating operation, you may have either a manual
changeover type of thermostat or a programmable
electronic type of thermostat.
Manual changeover means that the comfort switch must
be manually positioned every time you want to switch
from the cooling to heating mode of operation or heating
to cooling mode of operation.
A complete operating instruction is provided by the
manufacturer for each thermostat.
Johnson Controls Ducted Systems

Familiarize yourself with its correct operation to ensure
maximum comfort with minimum energy consumption.
The computerized electronic thermostat is an electronic
version of a manual changeover type of thermostat.
This thermostat includes features that allow set-back
temperature variations for nighttime or periods when
you are away from home during the day, reducing energy
costs. The thermostat also features a digital clock.
Cooling only
If your air conditioning system is designed to provide
cooling only (AC), with no capability for heating operation
(heat pump), a two-stage cooling only thermostat with a
manual, one-position Cool and Off comfort switch is all
that is required for system operation.
Cooling and heating (heat pump)
If your system is designed to allow both cooling and
heating operation, you may have either a manual
changeover type of thermostat or a programmable
electronic type of thermostat with two stages of cooling
and two stages of heat.
Manual changeover
Manual changeover means that the comfort switch must
be manually positioned every time you want to switch
from the cooling to heating mode of operation or heating
to cooling mode of operation.
Start-up
Observe the maximum and minimum conditions for
operation to ensure your system delivers optimum
performance and requires minimum service.
Table 1: Minimum and maximum operating limit
conditions
Outdoor coil °F
(°C)
Indoor coil °F (°C)Air
temperature
DB cool DB heat WB cool DB heat
Minimum 35 (2) -5 (-21) 57 (14) 50 (10)
Maximum 122 (50) 75 (24) 72 (22) 80 (27)
Note: Refer to the NOTICE in the Reduced capacity
conditions section in the Installation Manual.
Note: Operation below listed temperatures is
permissible for a short period of time during
morning warm-up.
If the main power supply to the outdoor and indoor units
is off, place the system into operation as follows:
1. Enable the mode of operation.
2. Set the thermostat to the required temperature.
-Cooling: For cooling, the higher the setting,
the lower the amount of energy consumed.
Federal guidelines recommend a setting of
78°F (26°C).
-Heating: For heating, the lower the setting,
the lower the amount of energy consumed.
Federal guidelines recommend a setting of
65°F (18°C) or lower.
Note: If your cooling and heating temperature
adjustments are separate, ensure to set both.
3. Set the mode of fan operation required.
Power failure
If a power failure occurs, the system automatically
resumes operation when power is restored, using the set-
points that were present when power was interrupted.
When accidents, wind, storms, or other issues disrupt
electrical power supply to your home, set the thermostat
to the Off position.
Electronic thermostat
This computerized electronic thermostat, when
programmed, functions automatically to operate the
system as follows:
• When the indoor temperature rises above the higher
(cool) setting, the outdoor unit operates and the
indoor fan circulates the cooled, filtered air. When the
room temperature is lowered to the selected level,
the system shuts off. The indoor fan either shuts off
or runs continuously, depending on the selected fan
switch setting.
• When the indoor temperature drops below the lower
(heat) setting, the heating system operates and the
indoor fan circulates the heated, filtered air. When
the indoor temperature rises to the selected setting,
the system shuts off. The indoor fan either shuts off
or runs continuously, depending on the selected fan
switch setting.
Operating efficiency
Heating conservation
For the most efficient operation, keep storm windows and
doors closed all year long. They help insulate against heat
and cold, and they also keep out dirt, pollen, and noise.
To conserve already heated air, do the following:
• Close drapes at night.
• Keep fireplace dampers closed when not in use.
• Run exhaust fans only when necessary.
Keep lamps, televisions, or other heat producing sources
away from the thermostat. The thermostat senses
this extra heat and is not able to maintain the inside
temperature to the chosen comfort level.
Cooling conservation
The following are some useful points to note:
• To comfortably cool your home, your air conditioner
must remove both heat and humidity. Do not turn your
system off, even if you are away all day. It is normal for
this unit to run continuously as it maintains the comfort
level.
• Keep windows closed after sundown. While the outdoor
temperature at night may be lower than indoors, the
air is generally loaded with moisture that is soaked up
by furniture, carpets, and fabrics. This moisture must
be removed when you restart your system.
User's Information Manual: HMH7 Series - 17 SEER2 Horizontal Discharge Modulating Heat Pump2
Johnson Controls Ducted Systems

• The hotter the outside temperature, the greater the
load on your system. Therefore, do not be alarmed
when your system continues to run after the sun
sets on a hot day. Heat is stored in your outside walls
during the day and continues to flow into your home
for several hours after sunset.
• Use your kitchen exhaust fan when cooking. One
surface burner on high requires one ton of cooling.
Turn on your bathroom exhaust fan while showering
to remove humidity. However, exhaust fans must not
run excessively as this decreases efficiency by removing
conditioned air.
• Aid your system in the summer by closing drapes or
blinds and by lowering awnings on windows that get
direct sunlight.
System maintenance
Perform regular periodic preventative maintenance
on this equipment. The person most familiar with the
equipment in your HVAC system is a dealer. The dealer
can ensure your maintenance program meets the
conditions of the warranty, maximize the efficiency of
the equipment, and service your unit within the federally
mandated guidelines with regard to unlawful discharge of
refrigerants into the atmosphere.
Coil care
Keep the outdoor unit free of foliage, grass clippings,
leaves, paper, and any other material that could restrict
adequate airflow in and out of the unit. Vacuum the coil
to remove any debris from between the fins. If the coil
becomes excessively dirty, set the main disconnect switch
to Off and wash the coil with your garden hose. Avoid
getting water into the fan motor and control box. Flush
dirt from the base pan after cleaning the coil.
Service calls
There are a few instances where you can avoid
unnecessary service calls. If the unit stops functioning
correctly, check the following items before calling your
servicing dealer:
• Indoor section for dirty filter
• Outdoor section for leaf or debris blockage. Eliminate
the problem, set the thermostat to the Off position for
10 s, and then select the heating or cooling mode of
operation to restart. The system starts after the 5-min
anti-short-cycle delay. If the system does not start, call
your service dealer.
WARNING
Your system contains environmentally friendly
refrigerant R-410A, which operates at high pressures.
You may be in danger if you try to make an attempt to
repair your unit. Please contact your local dealer.
Filter care
Inspect the air filters at least once a month. If they are
dirty, wash reusable filters with a mild detergent per the
manufacturer’s recommendations. Replace disposable
filters with new filters.
Install the clean filters with the airflow arrow in the same
direction as the airflow in your duct. Filters must be
clean to ensure maximum efficiency and adequate air
circulation.
Clearances
The minimum clearances from the outdoor unit shown
in Figure 1 must be maintained if any patio or yard
improvements are done around the outdoor unit.
Figure 1: Minimum clearances when selecting a
location
Parts information
Replacement parts are available from your local
contractor or dealer.
Extended warranty
Special warranty packages (called performance promise
plans) are available through your contractor. These
packages reduce the potential cost of service calls
following the first year of operation on your cooling (or
heating and cooling) system.
Some efficiency dos and do nots
•Do not constantly adjust the thermostat. Adjusting
your thermostat setting does not make your system
heat or cool any faster. Set your thermostat to a
comfortable setting and only adjust it when required.
•Do not restrict air circulation. Placing furniture, rugs,
and other obstacles where they interfere with air
vents makes your system work harder to achieve a
comfortable temperature level. This requires more
energy, which means greater energy costs.
•Do not locate lamps or other heat-producing
appliances (radios, TVs, heaters) near your thermostat.
The heat from these items gives your thermostat false
information about the temperature in the room.
•Do select a comfortable thermostat setting, but keep in
mind that moderation in temperature selection saves
energy.
•Do turn on your kitchen exhaust fan when cooking
and your bathroom exhaust fan when showering. Also,
make sure your clothes dryer is properly vented. If
these items are neglected, excess heat and humidity
may be created, causing your air conditioning system
to run longer.
User's Information Manual: HMH7 Series - 17 SEER2 Horizontal Discharge Modulating Heat Pump 3
Johnson Controls Ducted Systems

•Do set your thermostat a few degrees lower than
normal several hours before entertaining a large group
of people in a relatively small area. People give off a
considerable amount of heat and moisture in a closed
area.
•Do keep drapes and venetian blinds closed when
practical. These items provide insulation against heat
loss or gain.
•Do contact a qualified service person to make repairs
or adjustments to your system.
Characteristics of heat pumps
Constant heat
Heat pumps have a cooler supply air temperature than
furnaces. The common practice of over-sizing furnaces
contributes to an off-and-on again operation with short
blasts of hot supply air. The heat pump system is sized
more closely to the heating needs of your home. Heat is
supplied at a lower temperature over a longer period of
time to provide a more constant heat, and it may give you
the impression that your system never stops running.
Water run-off
During the heating cycle in mild weather, you may notice
water running off the outdoor coil. Moisture from the
air condenses on the outside surface of the coil, where it
gathers and runs off. This is a normal part of operation
and does not indicate a leakage.
Outdoor coil defrosting
At certain outdoor conditions (low temperature,
high humidity), frost may build up on the coil of the
outdoor unit. To maintain heating efficiency, the
system automatically defrosts itself. Steam rising from
the outdoor unit is normal and is an indication of
correct operation. The vapor cloud only lasts for a few
minutes. When the defrost cycle completes, the system
automatically switches back to heating. Auxiliary heat
is automatically energized to maintain comfort during
defrosting.
User's Information Manual: HMH7 Series - 17 SEER2 Horizontal Discharge Modulating Heat Pump4
Johnson Controls Ducted Systems

Limited warranty
Residential Split AC and HP Communicating Variable
Capacity Systems
Warranty terms: Johnson Controls Ducted Systems
(hereinafter “Company”) warrants this product to be
free from defects in factory workmanship and material
under normal use and service and will at its option,
repair or replace defective parts without charge, subject
to the exclusions below and according to the terms
outlined in this warranty. Company reserves the right,
at its sole discretion, to provide an equivalent complete
replacement unit in place of repair parts. Alternatively,
Company may at its option, offer a replacement price
allowance to be applied toward the purchase of a new
unit offered by Company. The exact allowance amount
will be determined at the discretion of Company, based
upon availability, age of existing equipment and current
market conditions, but excluding items as ductwork,
wiring, piping, and installation costs. The warranty
period for obtaining repaired or replacement parts, or an
allowance shall not extend beyond the original warranty
period as stated below. In addition, if a replacement unit
is provided by Company, the warranty period for the
complete replacement unit is limited to the remainder of
the original warranty period.
This warranty covers only equipment described by the
Product Model Number and Unit Serial Number on the
equipment or listed on the Warranty Registration Card,
and applies only to products installed in the United
States, Canada, or Puerto Rico. Company shall have no
responsibility for installation, service, shipping, handling
or other costs or charges, except as otherwise provided in
this warranty. Tampering, altering, defacing, or removing
the product serial number will serve to void this warranty.
This warranty extends only to the original consumer
purchaser and is nontransferable.
For this warranty to apply, the product must be
installed according to Company recommendations and
specifications, and in accordance with all local, state,
and national codes; and the product or residence must
not be removed from its place of original installation.
This warranty does not apply to any unit sold over the
Internet, by telephone or other electronic means unless
the dealer that buys or sells a unit over the Internet, by
telephone or other electronic means also installs the unit.
In the absence of a recorded Warranty Registration Card,
the warranty period will begin upon product shipment
from Company. If you are unaware of the effective
warranty date, contact Company at 1-877-874-7378 or visit
www.upgproductregistration.com.
For product registration: For your benefit and
protection, register your product with Company
promptly after installation. This will initiate the warranty
period and allow us to contact you, should it become
necessary. You can register your product online at
www.upgproductregistration.com. or by returning the
Warranty Registration Card on the back page of this
packet.
Product Model Number:
___________________________________________________________
Unit Serial Number:
___________________________________________________________
Installation Date:
___________________________________________________________
Installing Dealer:
___________________________________________________________
For warranty service or repair: Notify your Installing
Dealer or a Participating Dealer, preferably in
writing, as soon as possible after discovery of the
problem. Be sure to include the Product Model
Number, Unit Serial Number, Installation Date, and a
description of the problem. You may find the Installing
Dealer's name on this page or on the equipment,
and you can locate Participating Dealers online at
www.simplygettingthejobdone.com.
If a Dealer response is not received within a reasonable
amount of time, notify Company at: Johnson Controls
Ducted Systems, Consumer Relations, 5005 York Drive,
Norman, OK 73069 or by telephone at 1-877-874-7378.
All warranty service or repair will be performed during
regular business hours, Monday through Friday 9:00 AM -
5:00 PM. Service requests sent to Company without prior
Dealer contact will be referred back to a Participating
Dealer. Because this process takes time, it is in the best
interest of the Consumer to contact a Participating Dealer
directly.
Warranty period: The warranty period in years,
depending on the part, is as shown in the chart below.
Condensing
units
Compressor Parts
R-407C Models:
GAW14L
5 years 5 years†
R-410A Models:
RAC13L, RAC14L,
RAW14L, REP14L,
RHP14L, RHP16L
5 years 5 years†
R-410A Models:
YCD, TC3B, YCE,
TC4B, YCG, CC7B,
TC7B, YCS, TW4B,
YFD, TF3B, YFE,
TF4B, YFK, CC17,
TC17, TCD*,
TCG*, TCHD*,
TCHE*, YEE, TE4B,
YHE, TH4B, YHG,
CH6B, TH6B,
YHM, CH16, TH16,
THE*, HMH7
5 years or
10 years††
5 years or
10 years†
R-410A Models:
YXT, AC19B,
HC19B, YZT,
AL19B, HL19B
10 years or
Lifetime†
5 years or
10 years†
Note:
*All 3 phase models (with 31, 41, or 51 voltage
codes) have 5-year compressor and 1-year
parts warranty and are not eligible for 10-year
User's Information Manual: HMH7 Series - 17 SEER2 Horizontal Discharge Modulating Heat Pump 5
Johnson Controls Ducted Systems

parts warranty. To qualify for the † Extended 10-
year parts warranty or the †† Extended 10-year
compressor warranty or ‡ Lifetime compressor
warranty, the unit must be registered online at
www.upgproductregistration.com within 90 days
of installation for replacement units or within 90
days of closing for new home construction. In some
states, registration is not required, but proof of
installation is required.
Maintenance:
Company strongly recommends regular periodic
preventive maintenance on this equipment. The person
most familiar with the equipment in your HVAC system is
a Participating Dealer. The Participating Dealer can ensure
that your maintenance program meets the “Company
Warranty” conditions, maximize the equipment efficiency,
and service your unit within the mandated guidelines
with regard to unlawful discharge of refrigerants into the
atmosphere. For additional buyer protection, Residential
Home Comfort Plans are available from a Participating
Dealer. These plans provide you with additional years
of warranty service protection including labor charges.
Home Comfort Plans must be purchased within one (1)
year from the date the equipment was installed.
EXCLUSIONS: This warranty does not cover any:
1. Shipping, labor, or material charges or damages
resulting from transportation, installation, or
servicing.
2. Damage or repairs required as a consequence of
mishandling, faulty installation, misapplication,
abuse, improper servicing, unauthorized alteration,
or improper operation.
3. Damages or failure to start resulting from improper
voltage conditions, blown fuses, open circuit
breakers, or other inadequacy or interruption of
electrical service or fuel supply.
4. Fuses, either internal or external to the product.
5. Labor or other costs incurred for diagnosing,
repairing, removing, installing, shipping, servicing,
or handling of either defective parts or replacement
parts.
6. Products removed from their original location for
reinstallation purposes.
7. Damages resulting from accident, abuse, fire, flood,
alteration, or acts of God.
8. Damages resulting from use of the product in a
corrosive atmosphere.
9. Normal maintenance, or damages resulting from
failure to perform normal maintenance, as outlined
in the installation and servicing instructions or
owner's manual.
10. Cleaning or replacement of filters, nozzles, or
orifices.
11. Damages resulting from operation with inadequate
supply of air or water; Damages resulting from
failure to properly and regularly clean air and/ or
water side of condenser and evaporator.
12. Damages resulting from: (I) freezing of condenser
water or condensate; (II) inadequate or interrupted
water supply; (III) use of corrosive water; (IV) fouling
or restriction of the water circuit by foreign material
or like causes.
13. Damages caused by improper parts, components or
accessories not suitable for use in or with the unit.
For a list of parts that are known to be compatible
please reference the equipment renewal parts list,
contact a Participating Dealer for assistance, or call
1-877-874-7378.
14. Electricity or fuel costs, or increases in fuel or electric
costs, for any reason including additional or unusual
use of supplemental electric heat.
This warranty is in lieu of all other express warranties.
All implied warranties, including the implied warranty
of merchantability and fitness for a particular purpose
are limited in duration to the actual warranty period
applicable to the part. Some states do not allow the
disclaimer of implied warranties, so the above disclaimer
may not apply to you. In addition, some states do not
allow limitations on how long an implied warranty lasts,
so the above limitation may not apply to you. In no event,
whether as a result of breach of warranty or contract, tort
(including negligence), strict liability, or otherwise, shall
Company be liable for special, incidental, or consequential
damages or expenses, including but not limited to loss
of use of the equipment or associated equipment, lost
revenues or profits, cost of substitute equipment, or cost
of fuel or electricity.
The above limitations shall inure to the benefit of
Company's suppliers and subcontractors. The above
limitation on consequential damages shall not apply
to injuries to persons in the case of consumer goods.
Company does not assume, or authorize any other person
to assume for Company, any other liability for the sale of
this product. Some states do not allow the exclusion or
limitation of incidental or consequential damages, so the
above limitation may not apply to you. This warranty gives
you specific legal rights. You may also have other rights
which vary from state to state.
Subject to change without notice. Published in U.S.A.
Copyright © 2023 by Johnson Controls. All rights reserved.
Johnson Controls Ducted Systems
York International Corporation, 5005 York Drive, Norman, OK 73069
6345396-UUM-A-0123
Supersedes: 6331857-UUM-A-1222
2023-01-19