MrCool PRODIRECT Series Betriebsanleitung
Installation & Owner’s
Manual
PRODIRECT™ SERIES
Air Handler HAH140*C
Copyright © 2021 MRCOOL, LLC
Thank you for choosing MRCOOL. Please read this manual carefully before installation and keep it for future reference.
Due to updates and constantly improving performance, the information and instructions within this
manual are subject to change without notice. Please visit www.mrcool.com/documentation to
ensure you have the latest version of this manual.
Version Date: 2-22-21
These instructions are intended as an aid for qualified,
licensed service personnel for proper installation,
adjustment, and operation of this unit. Read these
instructions thoroughly before attempting installation
or operation. Failure to follow these instructions may
result in improper installation, adjustment, service or
maintenance possibly resulting in fire, electrical shock,
property damage, personal injury or death.
mrcool.com
INDOOR UNIT
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INSTALLATION AND OWNER’S MANUAL
Table of Contents
INDOOR SPLIT-SYSTEM UNIT MODELS: UP TO 18 SEER 1.5 TO 5 TONS
1 SAFETY
2 GENERAL
3 UNIT DIMENSIONS
4 VERTICAL UPFLOW
5 VERTICAL DOWNFLOW
6 HORIZONTAL
7 ELECTRICAL WIRING
8 POWER WIRING
9 CONTROL WIRING
10 GROUNDING
11 ELECTRICAL DATA
12 REFRIGERANT CONNECTIONS
13 EXPANSION VALVE + PISTON
14 CONDENSATE DRAIN TUBING
15 AIR FILTER (not factory-installed)
16 FILTER INSTALLATION DIMENSIONS
17 WIRING DIAGRAM
18 ELECTRIC WIRING GAUGE
19 ELECTRIC HEAT KIT INSTALLATION (Optional)
20 TROUBLESHOOTING
2
4
5
6
6
7
9
9
9
9
10
10
11
12
13
14
15
18
19
20
Disconnect all power to unit before installing or servicing. More
than one disconnect switch may be required to de-energize the
equipment. Hazardous voltage can cause severe personal injury or
death.
If removal of the blower assembly is required, all disconnect
switches supplying power to the equipment must be de-energized
and locked (if not in sight of unit), so the field power wires can be
safely removed from the blower assembly. Failure to do so can
cause electrical shock, resulting in personal injury or death.
Because of possible damage to equipment or personal injury,
installation, service, and maintenance should only be performed
by trained, qualified service personnel. Consumer service is
recommended only for filter cleaning/replacement. Never
operate the unit with the access panels removed.
These instructions are intended as an aid to qualified,
licensed service personnel for proper installation, adjustment,
and operation of this unit. Read these instructions thoroughly
before attempting installation or operation. Failure to follow these
instructions may result in improper installation, adjustment,
service or maintenance possibly resulting in fire, electrical shock,
property damage, personal injury or death.
This document is customer property and needs to remain with this unit. These instructions do not
cover all of the different variations between systems, nor does it provide for every possible
contingency that can arise during installation. All phases of this installation must comply with
NATIONAL, STATE, AND LOCAL CODES. This manual could change without expressed written
notice. Visit mrcool.com/documentation for the latest versions.
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1 SAFETY
This is a safety alert symbol. When you see this symbol on labels or in manuals, be
alert to the potential for personal injury.
This is an attention alert symbol. When you see this symbol on labels or in manuals,
be alert to the potential for personal injury.
PROPOSITION 65: This appliance contains fiberglass insulation.
All manufacturer products meet current federal OSHA Guidelines
for safety. California Proposition 65 warnings are required for
certain products, which are not covered by the OSHA standards.
California’s Proposition 65 requires warnings for products sold in
California that contain or produce any of the over 900 listed
chemicals known to the State of California to cause cancer or birth
defects. These include, fiberglass insulation, lead contained in
brass, and combustion products from natural gas.
All “new equipment” shipped for sale in California will have labels
stating that the product contains and/or produces Proposition 65
chemicals. Although we have not changed our processes, having
the same label on all our product facilitates manufacturing and
shipping. We cannot always know “when, or if” products will be
sold in the California market.
You may receive inquiries from customers about chemicals found
in, or produced by, some of our heating and air-conditioning
equipment, or found in natural gas used with some of our
products. Listed below are those chemicals and substances
commonly associated with similar equipment in our industry and
other manufacturers.
• Glass Wool (Fiberglass) Insulation
• Carbon Monoxide (CO)
• Formaldehyde
• Benzene
More details are available at the websites for OSHA (Occupational
Safety and Health Administration), at www.osha.gov and the
State of California’s OEHHA
(Office of Environmental Health Hazard Assessment), at
www.oehha.org. Consumer education is important since the
chemicals and substances on the list are found in our daily lives.
Most consumers are aware that products present safety and
health risks, when improperly used, handled and maintained.
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Make sure the blower motor support is
tight, which is secured by 3-motor mount
bolts. Then check to see if the wheel is
secured to motor shaft before operating
unit.
The unit must be properly and permanently grounded. Failure to
do so could result in electrical shock causing personal injury or
death.
The first 3 feet (36 inches) of the supply air plenum and ductwork
must be constructed of sheet metal as required by NFPA 90B. The
supply air plenum or duct must also have a solid sheet metal
bottom directly under the unit with no openings, registers or
flexible air ducts located in it.
If flexible supply air ducts are used, they can only be located in
the vertical walls of the rectangular plenum and must be a
minimum of 6 inches from the solid bottom. The metal plenum of
the duct may be connected to the combustible floor base, if not, it
must be connected to the unit supply duct that is exposed to the
supply air opening from the downflow unit. Exposing combustible
(non-metal) material to the supply opening of a downflow unit
can cause a fire, resulting in property damage, personal injury, or
death.
Exception warning to downflow:
Installations on a concrete floor slab, with supply air plenum and
ductwork completely encased, must use at least 2 inches of
concrete (See NFPA 90A).
The unit can be positioned for bottom return air in the upflow position, left and right return in the
horizontal position, or top return in downflow position.
This Air Handler provides the flexibility for installation in any upflow, downflow, or horizontal
application. The direct drive motors provide a selection of air volumes to match any application. The
3-Speed motors can be adjusted to provide air flow to meet desired applications.
Top and side power control wiring, and accessible screw terminals for control wiring, all combine to
make the installation easy, and minimize installation cost. Please contact your local distributor (Refer to
Fig.1).
The appliance is only intended to supply conditioned air to one room.
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2 GENERAL
ELECTRICAL CONNECTIONS CAN
EXIT THE TOP, OR EITHER SIDE, OF
THE UNIT
3 UNIT DIMENSIONS
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UNIT LENGTH
Table 1
5 VERTICAL DOWNFLOW
IMPORTANT NOTE
4 VERTICAL UPFLOW
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1) Vertical Upflow configuration is the factory set on all models (see Fig 1)
2) If a side return air opening is required, field fabricate a return air plenum with an opening large
enough to supply unit and strong enough to support unit weight.
3) If return air is to be ducted, install duct flush with floor. Use fireproof resilient gasket 1/8 in. to 1/4
in. thick between the ducts, unit, and floor. Set unit on the floor over the opening.
Conversion to Vertical Downflow: A vertical upflow unit may be converted to vertical downflow.
Remove the door and indoor coil and reinstall 180 degrees from its original position (Refer to Fig. 3).
IMPORTANT: To comply with certification agencies and the National Electric Code for horizontal right
application, the circuit breaker(s) on field-installed electric heater kits must be re-installed, per the
procedure below, so that the breaker switch ”on” position and marking is up and, ”off” position and
marking is down.
To rotate breaker(s): Rotate one breaker set (circuit) at a time, starting with the one on the right.
Loosen both lugs on the load side of the breaker (make sure that wires are identified and are
reinstalled into proper breaker). Wires are bundled with wire ties, one bundle going to the right lug
and one bundle going to the left lug.
Torque applied to drain connections should not exceed 15 ft. lbs. (Refer to Fig.1 & 2).
•Using a screwdriver, lift the blue plastic tab with hole away from breaker until breaker releases from
mounting opening.
•With breaker held in hand, rotate breaker so that the ”on” position is up, and ”off” position is down (with
unit in planned vertical mounting position). Insert right wire bundle into top right breaker lug, ensuring all
strands of all the wires are inserted fully into lug, and no wire insulation is in the lug.
•Tighten lug as tight as possible while holding circuit breaker. Check wires and make sure each wire is
secure and none are loose. Repeat for left wire bundle in left top circuit breaker lug.
•Replace breaker by inserting the breaker mounting tab, opposite of the white pull tab in opening, hook
mounting tab over edge in opening.
•Using a screwdriver, pull the blue tab with hole away from breaker while setting that side of breaker into
the the opening. When breaker is in place, release tab, which will lock circuit breaker into location in
opening.
•Repeat above operation for remaining breaker(s) (if more than one is provided).
•Replace single point wiring jumper bar, if it is used, on line side of breaker and tighten securely.
•Double check wires and lugs to make sure all are secure and tight. Check to make sure unit wiring to
circuit breaker load lugs match that shown on the unit wiring diagram.
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When using the unit with the electrical heater, the switch on the
front of the panel is only used for the electrical heater.
Horizontal right is the default factory configuration for the units.
Conversion to Horizontal: A vertical upflow unit may be converted to horizontal left by removing indoor
coil assembly and reinstalling coil as shown for left hand air supply. And reinstall coil in unit as shown for
left hand air supply.
•Rotate unit into the downflow position, with the coil compartment on top and the blower compartment
on bottom (Refer to Fig. 3).
•Reinstall the indoor coil 180° from the original position. Ensure the retaining channel is fully engaged with
the coil rail (Refer to Fig. 3).
•Secondary drain pan kits are recommended when the unit is configured for the horizontal position over a
finished ceiling and/or living space.
Horizontal units must be configured for right hand air supply or
left hand air supply. Horizontal drain pan must be located under
indoor coil. Failure to use the drain pan can result in property
damage.
Conversion in Horizontal Direction: Horizontal right-hand supply can be changed to horizontal left-hand
supply by removing the indoor coil and reinstalling 180 ° from the original position.
6 HORIZONTAL
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HAH14018 HAH14024 HAH14030 HAH14036 HAH14042 HAH14048 HAH14060
InWC
InWC
0.10 0.10 0.15 0.15 0.15 0.20 0.20
CFM(hi/mi/lo)
723/610/500938/804/7381204/1060/9191376/1235/11611562/1385/1208 1695/1574/1434 1695/1574/1434
0.18 0.18 0.23 0.23 0.23 0.28 0.28
CFM(hi/mi/lo)
1364/1229/8491595/1366/12562046/1955/15622340/2100/19742480/2430/2074 2882/2676/2437 2882/2676/2437
Indoor external
static pressure
Indoor air flow
14SEER AHU
Market Model
Indoor air flow
Indoor external
static pressure
Table 2
Andere Handbücher für PRODIRECT Series
1
Dieses Handbuch passt für folgende Modelle
9
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