MRCOOL MGM80SE135D5A, MPC601M414A, MPH601M414A Installation Manual
The Signature Series is NOT designed for amateur installation. Installation SHOULD be performed by an authorized technician.
Please read this manual carefully before installation and keep it for future reference.
Owner & Installation
Manual
Signature Series
MPC*1M414A & MPH*1M414A
Residential Packaged Units
The Signature Series is NOT designed for amateur installation. Installation SHOULD be performed by an authorized technician.
Please read this manual carefully before installation and keep it for future reference.
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
WARNING
Installation and servicing of air conditioning equipment
can be hazardous due to internal refrigerant pressure
and live electrical components. Only trained and
INSTALLATION AND MAINTENANCE
INSTRUCTIONS
MPC*1M414A
& MPH*1M414A
Air Conditioners and Heat Pumps
C
Table of Contents
Installation ...................................................................2
Electrical Wiring...........................................................3
Duct System ................................................................4
Filters...........................................................................5
Condensate Drain........................................................5
Sequence of Operation................................................
Maintenance................................................................
Wiring Diagrams........................................................11
this equipment. Installation and service performed by
WARNING
other appliance. Such actions could result in property
WARNING
If this unit is to be installed in a mobile or manufactured
guidelines. All other installation guidelines must also
the unit.
Manufactured By
MRCOOL LLC
*F507296-C*
C
CAUTION
The installation of this appliance must conform to the requirements of the National Fire Protection Association; the
jurisdiction should be consulted before installation is made. Such applicable regulations or requirements take precedence
over the general instructions in this manual.
Save these instructions for future reference
507296-02C Page 1 of 12mrcool.com
Location
WARNING
or maintenance can cause injury or property damage.
Refer to this manual. For assistance or additional
agency.
Installation
These instructions explain the recommended method of
installation of the packaged heat pump and air conditioner
system.
clearance for free entrance to the air inlet and discharge
service access.
not settle or shift. Adequate structural support must be
provided. Install the unit in level position. Isolate the base
from the building structure to avoid possible transmission
of sound or vibration into the conditioned space.
The heat pump unit foundation should be raised to a
In areas that have
prevent ice accumulation. The unit should not be located
defrost condensate.
Avoid placing the unit near quiet areas, such as
sleeping quarters or study rooms. Normal operating
sound levels may be objectionable if the unit is placed near
certain rooms.
read prior to beginning installation. Note particularly any
CAUTIONS or WARNINGS in these instructions and all
labels on the units.
equipment should be determined prior to installation.
Inspection of Shipment
the unit inside the carton if the carton is damaged. File a
as claim may be denied.
are as ordered.
Limitations
For improved start-up performance, the indoor coil
should be washed with suitable detergent to remove
any residue from manufacturing processes.
Roof Curb Installation
Instructions and be sure that all required clearances are
observed.
Rigging and Handling
CAUTION
packaging until the unit is near the place of installation.
An optional lifting lug kit may be purchased separately for
used across the top of the unit.
and local safety codes.
of the forklift must be a minimum of 42”.
also be observed.
outdoor air stream. The outdoor fan is not designed to
operate against any additional static pressure.
Page 2 of 12 507296-02Cmrcool.com
The lengths of the forks
REDUCE
TO
6.00
REDUCE
TO
W1
C
L
R
O
Y1
FAN
O-OUT
LO-PS
DF
HI-PS
COMMON
Y1 OUT
2
2
24 V
Y
W2
RED
YEL
BLU
WHT
GRN
ORN
W1 & W2 CAN BE USED TO STAGE
ELECTRIC HEAT ACCESSORY ON
15 & 20KW MODELS
5, 7.5 & 10KW HEATER ACCESSORIES
FUNCTION OFF W1 ONLY.
WHT
DEFROST
CONTROL
P-6
P-5
G
W1
C R O
THERMOSTAT
537663-01
NOTE:
IF ANY OF THE ORIGINAL
WIRE IS REPLACED THE
SAME SIZE AND TYPE WIRE
MUST BE USED.
USE COPPER CONDUCTOR
ONLY, MIN 75 C WIRE
CONNECTION MUST BE JUMPERED
WHEN PRESSURE SWITCH IS NOT USED.
LINE VOLTAGE FIELD INSTALLED
WARNING-
ELECTRIC SHOCK HAZARD. UNIT
MUST BE GROUNDED IN ACCORDANCE
WITH NATIONAL AND LOCAL CODES.
REV. VALVE
Service Access
Access to all serviceable components is provided by four
WARNING
Figure 1. Rigging Unit
Figure 2. Typical Field Wiring
Clearances
All units require certain clearances for proper operation
and service. Refer to Table 1 for the minimum clearances
proper unit operation.
Do not permit overhanging structures or shrubs to
obstruct condenser air discharge outlet.
Clearance to
Combustibles
Front of unit
Back of unit
Right side
Base of unit
Top of unit 48 in.
Clearance for
Service Access
24 in.
24 in.
24 in.
CAUTION
Compressor
adjusted and ready for operation. Do not loosen
compressor mounting bolts.
Unpacking
Carefully remove outer packaging material and discard.
corner and seal the shipping openings in the base from
prevent air leakage during unit operation.
the installer. Refer to the unit rating plate for maximum
507296-02C Page 3 of 12mrcool.com
Table 1. Minimum Clearances
Electrical Wiring
or pigtail leads located on the main control box and are
CAUTION
during normal operation.
Units are factory wired for a 230-volt power supply.
If power supply is 208 volts, it will be necessary to
change a wire connection on the unit transformer from
240V terminal to 208V terminal as shown on the wiring
diagram.
Use only copper conductors.
*
“O” connection used only on heat pump models
*
Thermostat
The room thermostat should be located on an inside
installation.
Contactor
changed
Figure 3. 208/230 Line Voltage Wiring
or Circuit Breaker
Disconnect
Single Phase
off W1 only.
Figure 4. Typical Wiring Connections
Duct System
Duct system should be designed and sized according to the
methods in Manual Q of the Air Conditioning Contractors of
A closed return duct system shall be used. This shall not
preclude use of economizers or outdoor fresh air intake. It
is recommended that supply and return duct connections
The supply and return air duct systems should be designed
for the CFM and static requirements of the job. They
should not be sized to match the dimensions of the
duct connections on the unit.
panel. Duct to unit connections must be sealed and
Page 4 of 12 507296-02Cmrcool.com
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