International Refrigeration Products MZG409HP16230EA User manual

HIGH EFFICIENCY SERIES
MINI-SPLIT
QUAD AND DUAL ZONES
INSTALLATION MANUAL
FOR THERMAL ZONE MODELS
MZG409HP16230EA Evaporator
MZG412HP16230EA Evaporator
MZG418HP16230EA Evaporator
MZG434HP16230CA Condenser
MZG424HP16230CA Condenser
FOR SEA BREEZE MODELS
9MH46ZIGX Evaporator
12MH46ZIGX Evaporator
18MH46ZIGX Evaporator
34MH46ZOGX Condenser
24MH46ZOGX Condenser
950-0153 June 17, 2010

TABLE OF CONTENTS
Installation Steps 3
Notes to Installer 3
Parts Included with Indoor Unit 4
Installer Supplied Parts 4
Condensate Pump 4
Decorative Channel 5
Wall Brackets 5
Installation Considerations 5
General Information 5
System Configuration Options 6
Select Locations for Indoor Unit 6
Select Locations for Outdoor Unit 6
Line Set Length 7
Indoor Unit (Evaporator) installation 7
Outdoor Unit (Condenser) installation 10
Connecting Line Set 11
Electrical Connection – Notes 13
Connect the Cable to the Outdoor Unit – Notes 13
Typical Electrical Wiring Connections 14
Connect the Cable to the Indoor Unit – Diagram 15
Typical Outdoor Installation (Adaptor Explanation) 16
Evacuation of the Refrigeration Tubes and Indoor Unit 17
Leak Testing 17
Vacuum Purge 17
Suction Port Connections 18
Start Up Testing 19
Preparation 19
Operational Test 19
Outdoor Unit Specifications (Dual Zone) 20
Outdoor Unit Specifications (Quad Zone) 21
Indoor Unit Specifications 22
Troubleshooting 23
Error Codes 24
Flash Codes Outdoor Unit (Quad) 25
Flash Codes Outdoor Unit (Dual) 26
Outdoor Electrical Schematics (Quad) 27
Outdoor Electrical Schematics (Dual) 28
Dual Zone PC Board Layout 29
Quad Zone PC Board Layout 30
Warranty and Technical Support 31
Do not dispose this product as unsorted municipal waste. Collection of such waste for
special treatment is necessary.
950-0153 - 2 - June 17, 2010

950-0153 - 3 - June 17, 2010
Installation Steps:
•Select the location for the indoor and outdoor unit. (page 6)
•Mount the indoor wall brackets. (page 7)
•Drill wall penetration holes. (page 8)
•Hang the indoor units. (page 9)
•Locate and mount the outdoor unit. (page 10)
•Connect and route line set. (page 11 – 12)
•Connect the wiring from the indoor unit to the outdoor unit. (Page 13 – 15)
•Evacuate line set. (page 17-18)
•Test system. (page 19)
•Start Up Testing NOTES TO INSTALLER
This manual is to aid the qualified HVAC contractor in the installation of this Mini Split system.
Report all shipping damage to the carrier IMMEDIATELY. Check units and box exterior for damage.
Please read and understand these instructions prior to installing the unit, failure to comply with these
instructions may result in improper installation, operation and maintenance, possibly resulting in fire, electrical
shock, property damage, personal injury or death.
CAUTION! Do not use old refrigerant lines with new installation:
For connecting pipes use new and clean piping materials with high pressure fittings made for R410A only.
This air conditioner adopts the new HFC refrigerant (R410A) which does not destroy ozone layer. R410A
refrigerant operates at approximately 1.6 times the pressure of refrigerant R22. Accompanied with the
adoption of the new refrigerant, the refrigeration lubricating oil has also been changed. During installation be
sure that water, dust or foreign material does not enter into the new system. The system must not be left open
to the atmosphere for any reason for any period of time as the systems oil quickly absorbs moisture and will
contaminate and damage the system. To prevent mixing of refrigerant or refrigeration lubricating oil, the sizes
of connecting sections of charging port on main unit and installation tools are different from those used for the
conventional refrigerant units. Accordingly, special tools are required for the new refrigerant (R410A) units.
The best and recommended solution is do not use the existing line sets because there may be some
problems with pressure fittings and possible impurities in the existing piping.
When installing this unit, an electrical surge suppressor is recommended.
Installers please pass this manual and warranty registration to end user. If technical assistance is required
during installation or start up, please call 704-504-8590 (M-F 8:00 am to 4:30 pm ET) to speak to a Technical
Service Engineer. Before calling please have the Model and Serial numbers available.
Safety Instructions:
1. Carefully read all instructions prior to installation.
2. Check Rating Plate for correct system voltage before installing the unit. Installing and operating a
unit with the incorrect voltage may result in malfunction or other issues and will void the warranty.
3. Units must be connected to a correctly grounded electrical supply.
4. Do not use the units if they have been dropped or otherwise damaged or installed incorrectly.
The manufacturer of the unit will not be liable for any damages caused by failure to comply with the
installation and operating instructions in this manual.
The unit rating plate contains pertinent information for unit operation; please refer to it as required.
Inspect all parts for damage prior to installation and start up. Units must be installed by a qualified HVAC
contractor.

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PARTS INCLUDED WITH UNIT
Indoor unit Outdoor Unit
Wall Bracket Drain Fitting
Remote Control Installation Manual
Batteries for Remote Control (2 AAA)
Remote Control Holder
•Adapter - Dual Zone requires 1/2"F to 3/8”M
(9510198) with 9K indoor unit.
Quad Zone requires 3/8”F to 1/2"M (9510197)
with 18K and/or 12K indoor unit(s).
•Drain Tubing 24 ft.
Operation Manual
INSTALLER SUPPLIED PARTS
The following additional Items are required for proper installation.
•Refrigerant line set: Insulated copper tubing:
o9K Indoor – 1/4” (liquid line) and 3/8” (suction line).
o12K Indoor – 1/4” (liquid line) and 1/2” (suction line).
o18K Indoor – 1/4” (liquid line) and 1/2” (suction line).
•Flare nuts 2 ea. required per line, see above (line set) for size.
•Vinyl UV resistant tape.
•Supply Power:
Dual Zone
o25 amp circuit breaker, #10 AWG copper wire from outdoor unit to power disconnect
(MZG424HP16230CA, 24MH46ZOGX)
Quad Zone
o40 amp circuit breaker, #8 AWG copper wire from outdoor unit to power disconnect
(MZG434HP16230CA, 34MH46ZOGX)
•Interconnect wire cable:
oDual Zone: 4C 16 AWG per indoor unit.
oQuad Zone: 4C 16 AWG per indoor unit.
•Refrigerant - R410A required for additional line set charge.
•Sealing putty.
•1/4” to 5/16” access fitting adaptor (PN: QC-S5)
•Mounting hardware - Wall anchors, condenser pad etc.
•Optional: Condensate pump, miniature, 115 VAC P/N DE05LUA520 (4100122).
Condensate pump, miniature, 230 VAC P/N DE05LUA720 (4100123).
Condensate pump, accessory kit P/N GC1KFX2010 (4100124).
Surge protector (highly recommended)
Note: Condensate pump P/N 77B2033 (4100123) can not be connected to the indoor unit. Power
connections must be made at outdoor unit supply power.
Main system breaker or disconnect sized per unit requirements should be mounted adjacent to outdoor unit.

Decorative Channel
Route the bundled piping and wiring to the outdoor unit and connect per the OUTDOOR UNIT installation
instructions. Our Plastic-Duct piping and wiring duct work provides a convenient and professional looking
system to route and protect the pipes and wires. Please see the illustrations below:
Wall Bracket
The outdoor unit may be mounted using a wall bracket (optional) (Our Catalog # BR-440L for up to 440 lbs),
or located in a freestanding position on the floor or pad (preferably slightly elevated).
INSTALLATION CONSIDERATIONS
General Information
Application
Check the application of the unit prior to installation. Certain applications require additional components or
installation parameters.
Computer or Data Server Rooms
These require approximately 12,000 BTU/H capacity per 250 ft² of room size (Based on 8’ ceiling height).
Offices and Commercial Spaces, Churches etc.
These require approximately 12,000 BTU/H capacity per 400 ft² of room size (Based on 8’ ceiling height).
Residential, Bedrooms, Family Rooms etc.
These require approximately 12,000 BTU/H capacity per 600 ft² of room size (Based on 8’ ceiling height).
Note: This system does not contain a back-up heat source and is NOT recommended as a primary
source of heat.
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System Configuration Options
Quad Zone
MZG434HP16230CA, 34MH46ZOGX (2 to 4 indoor units)
Note: 1. Do not mismatch or connect to an outdoor unit other than the designed matched system.
2. This system must be used with a minimum of two indoor units (evaporators).
2 INDOOR UNITS 3 INDOOR UNITS 4 INDOOR UNITS
9K + 9K 9K + 9K + 9K 9K + 9K + 9K + 9K
9K + 12k 9K + 9K + 12K 9K + 9K + 9K + 12K
12K + 12K 9K + 12K + 12K
9K + 18K 9K + 9K + 18K
12K + 18K 9K + 12k + 18K
12K + 12K + 18K
Dual Zone
MZG424HP16230CA, 24MH46ZOGX (2 indoor units)
Note: 1.Do not mismatch or connect to an outdoor unit other than the designed matched system.
2. This system must be used with two indoor units (evaporators).
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Indoor Models Available:
2 INDOOR UNITS
9K + 9K
9K + 12k
12K + 12K
9K Indoor model(s) MZG409HP16230EA, 9MH46ZIGX.
12K Indoor model(s) MZG412HP16230EA, 12MH46ZIGX.
18K Indoor model(s) MZG418HP16230EA, 18MH46ZIGX.
Selecting locations for the Indoor
unit
1. Determine the best location for
mounting the Indoor unit. Ensure
the dimensions requirement
indicated be the arrows are
followed.
2. Paying close attention to the air
circulation in the room, these
units throw air approximately
15ft. Ensure that no obstacles
impede airflow.
3. Do not mount this unit close to a
heat source or a doorway.
Selecting location for Outdoor
unit
1. Determine the best location for
mounting the outdoor unit.
Ensure the dimensions
requirement indicated be the
arrows are followed.
2. Do not mount this unit close to
combustibles or heat sources.
3. Although this unit is fairly quiet
when in operation, do not mount
where noise issues could be a
problem.

Line set length
Locate the Indoor and Outdoor units as close together as possible. Line set height cannot exceed
specifications.
Installation Notes:
1. The maximum total line set length must not exceed 229 feet for all units using the 34K condenser (Quad).
The maximum total line set length for the 24K condenser (Dual) is 65.6 feet.
2. Quad Zone models MZG434HP16230CA, 34MH46ZOGX are designed to have two to four indoor units.
Dual Zone models MZG424HP16230CA, 24MH46ZOGX are designed to run with 2 indoor units. DO NOT
use either of these systems with one indoor unit.
3. The Quad Zone max design length is 131 ft. for the total of all indoor units. The maximum total line set
length for all units is 229 ft. Refrigerant must be added when line set total length exceeds 131 ft.
4. The Dual Zone max design length is 49.2 ft. for the total of all indoor units. The maximum total line set
length for all units is 65.6 ft. Refrigerant must be added when line set total length exceeds 49.2 ft. (see
spec. sheet).
NOTE: An oil trap is recommended if the indoor unit is over 19 feet in height from the outdoor unit.
INDOOR UNIT (EVAPORATOR) INSTALLATION
1. Clearances and Mounting requirements (Indoor Unit)
Enough space should be left around the unit to facilitate maintenance. Please view Figure. 1 for
recommended dimensions:
Fig. 1
Figure 1
Minimum clearances as noted above. Mount indoor unit with a minimum 6” to ceiling. Indoor unit should have
approximately 16 feet of unobstructed area directly in front for proper air flow for the 9K and 12K indoor units.
The 18K should have approximately 25 feet of unobstructed area directly in front. Line set can exit at the right
or left rear or ends of the indoor unit.
Be sure that the indoor unit is mounted firmly to the wall, and that the wall structure will support the weight of
the unit.
Be sure that the air inlet and outlets are unobstructed.
Be sure that all clearances are as noted in the above Figure 1.
This unit is not designed to be connected to a plug-in outlet.
Do not install this unit:
Near a heat source
In direct sunlight
In areas where hazardous chemicals are present
Near combustible gases
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2. Mounting the Wall Plate
After determining an acceptable location for the indoor unit, fasten the wall bracket securely to the wall using
the proper anchors (installer supplied). Be sure the wall bracket is level and firm to the wall using a minimum
of 4 screws or wall anchors. Failure to mount the wall bracket level can result in improper condensation
drainage.
3. Wall Penetration
Using the measurements in Figure 1, determine the exit point of
the line set. For best results, the right rear is preferred. Left rear
exit of the line set requires that the line set be connected to the
indoor unit prior to mounting it to the wall plate. If desired the line
set may run along the inside wall by removing the cutouts along
the back edge of the case. Line sets mounted along the inside
wall may be covered with Plasti-Duct line set covering (See
page 5).
Inside Outside
Wrap with
tape
Cut a 2-5/8” hole slanted downward towards the outside.
Hole diameter is based on wall sleeve made from 2-1/2” PVC
pipe. Wall penetration should be slanted slightly downward to
the outside a minimum of 3/8" to provide proper condensation
drainage.
Wall sleeve can now be inserted into the
hole. Insert sleeve from the inside to the
outside. The sleeve should be
approximately 3/16” longer than the wall
thickness.
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4. Identify Line Sets
Mark the line sets as necessary to prevent
crossed connections. Crossed line sets will
prevent proper operation.
5. Mounting the Indoor Unit
If right rear exit of line set is used the
indoor unit can now be mounted. Remove
retaining clips from back of unit to allow
access to the line set stubs. Gently form
the line set stubs straight outward. Use
caution when forming the line set; being
careful not to kink the copper lines. See
Figure 3.
6. Connecting Line Set
If installer determines the line set should be
connected at this time, see page 11 for
torque standards.
Figure 3
Pipelines of indoor unit
Drainpipe Rearpipe
Figure 4

7. Hang the Indoor Units
Once lines are straight, carefully slide the ends of line set out through the wall sleeve. Hook the indoor unit
onto the top clips of the wall plate. Carefully lower the bottom portion of the indoor unit towards the wall,
snapping it into the clips at the bottom of the unit. See Figure 4.
If using the left rear exit run lines from outside to indoor unit. Form line set to mate to indoor unit stubs and
connect prior to mounting to indoor unit. If necessary run lines along inside wall and carefully remove the
proper cut out from the indoor unit housing. Line sets may be covered with Plasti-Duct for a more professional
job (see page 5).
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8. Inspect the Installation
Ensure that the hooks at the top and bottom of
the inside unit are firmly locked in place.
9. Verify the Indoor Unit is Properly Leveled.
Accurate leveling is critical to prevent water
damage during operation.
Figure 5
Drainhose
Curve upward
10. Check the Drain Hose
Observe that the condensate drain pipe does
not curve upward and is in the lower part of the
pipe bundle. See Figure 5.
11. Seal the Hole
Figure 6
Inside Outside
Seal Putty
Fill the gap between the wall sleeve and the
line set with sealing putty (installer provided) to
prevent outside air and moisture from entering
room (see Figure 6).

OUTDOOR UNIT (CONDENSER) INSTALLATION
The location must allow easy servicing and provide good air circulation as shown in the illustration below:
OUTDOOR
(CONDENSER)
UNIT
Shaded area
must be clear
Figure 7 (Top View)
Mounting the Outdoor (condenser) Unit
Follow the clearance guidelines in the
diagram above. Clearance distances
are minimums. Minimum clearance
above unit is 12" to allow for servicing.
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Install drain plug as in Figure 7a
(included). Drain hose not included.
Do not mount this unit close to
combustibles or heat sources.
Although this unit is fairly quiet when
in operation, do not mount this unit
where noise issues could be a problem. Figure 7a
Mount unit on an equipment pad or solid surface, install drain plug and tube as necessary. If wall mounting is
necessary a wall mount bracket may be purchased (BR-440L) for this purpose. Follow mounting instructions
for bracket to ensure safe installation.
Anchor bolts of the proper size and type (Installer provided) must be used.
For best results mount this unit as close as possible to the evaporators. Check maximum line length
specifications before mounting.
MAXIMUM LINE LENGTH MUST NOT BE EXCEEDED!

CONNECTING LINE SET
CAUTION! IMPROPER CONNECTION OF THE LINE SETS WILL RESULT IN IMPROPER OPERATION
OF THE SYSTEM. MARK EACH LINE SET AND WIRING FOR IDENTIFICATION. ENSURE THAT THE
WIRING AND THE LINE SETS ARE ROUTED TO THE PROPER INDOOR ZONE.
The Dual Zone uses a 1/2"F to 3/8”M adaptor for the 9K unit. The Quad Zone uses a 3/8”F to 1/2"M adaptor
for 18K and 12K units. (see figure 8)
Adaptor
Figure 8
Refrigerant Tubing
1. After the outside unit is secured to the mounting location (Pad, Wall Brackets, etc.), route the line set(s)
from the Indoor unit to the outdoor unit, and secure with clamps or Plastic-Duct as required.
Installation Notes:
The MZG434HP16230CA and 34MH46ZOGX Quad Zone units are designed to run two, three, or
four indoor units. DO NOT use this system with one indoor unit. (See page 6)
The MZG424HP16230CA and 24MH46ZOGX Dual Zone units are designed to run two indoor units.
DO NOT use this system with one indoor unit. (See page 6)
The outdoor unit is supplied with a sufficient refrigerant charge of R410A for a maximum Design
Length, no extra refrigerant required. Beyond this length additional refrigerant is required and must
be weighted in. (see specifications)
Indoor unit contains a small quantity of nitrogen. DO NOT remove the caps until the tubing is ready to be
installed.
NOTE: An oil trap is recommended to be installed if the indoor unit is over 19 feet in height from the outdoor
unit. To prevent kinking, bend tubes using a tubing tool.
CAUTION! WHEN REMOVING THE VALVE CAPS, DO NOT STAND IN FRONT OF VALVES, AS THE
SYSTEM IS UNDER HIGH PRESSURE.
2. Line set can now be terminated (if necessary), to the proper length. Cut the tubing a little longer than
measured distance. Completely remove all burrs from the cross cut section of tubing. Do not allow debris
to fall into copper tube. It is extremely important to clean the copper tubing prior to connecting to system.
3. Install flare nuts and follow standard flaring procedures. Use proper flaring tools for a leakproof
connection. If a flared section is defective, cut it off and follow standard flaring procedures again.
4. After cutting to length, creating the flares and before connecting the line set, clear all foreign materials by
blowing nitrogen through copper tubing. Align the center of the tubing flare with its mating connector.
Screw on the flare nut by hand and tighten the nut with a spanner and torque wrench. See Figure 10.
Note: Exceeding the tightening torque will damage the flare surface.
950-0153 - 11 - June 17, 2010

Torquewrenc
h
Spanner
Flarenut
Joint Connectionpipe
Tightening Torque Table:
Tightening Torque Table
1/4" 11-15
ft. lbs 3/8" 23-26
ft. lbs 1/2" 37-41 ft. lbs
Figure 9
Vinyltape
Connectionpipe
(heatinsulation)
Indoor unit pipin
Bindthe s together
sothat thereis nogap
pipe .
Overlaptheinsulation
Figure 11
Figure 12
Suction Line
Liquid Line
Condensation Drain
Control cable
Figure 13
Figure 10
5. Verify that the proper line set is being
connected to the intended port of the outdoor
unit. Connect the line sets to their appropriate
fittings on the outside unit, and torque the flare
fittings per the table above.
DO NOT CROSS WIRES OR CROSS
CONNECT SYSTEMS TO OUTDOOR
UNIT.
6. Bundle all lines, control cables and
condensation drain together. Be sure to leave
ample length on control cable to allow for
termination. Bundle can be secured together
using vinyl tape.
Note: Condensation drain MUST be placed at
the bottom of the bundle as shown in the
Figure 12. Failure to do so may cause
evaporator to drain improperly.
7. Line sets must have each tube insulated
separately, including their unions with at least
1/4” thick insulation. Wrap the refrigeration
tubing, drain hose, and electrical cables with a
UV protected vinyl tape. Overlap insulation at
all refrigeration joints per Figure 13.
Note: Completely wrap line set with insulation.
Insulation joints may overlap if desired.
CAUTION! Failure to completely wrap both lines with insulation may result in damage from condensation
forming on lines, and dripping onto walls, ceilings, etc.
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ELECTRICAL CONNECTION
WARNING! Improper wiring between the inside units and the outside unit can cause serious damage
to the system, and the risk of personal injury or fire. Use caution when connecting the wiring to insure
that the wires are connected properly!
NOTES:
- Electrical wiring and connections should be made by qualified electricians in accordance with National and
Local electrical codes and regulations.
- Proper grounding is a must.
- Voltage should not vary beyond +/- 10% of the rated voltage.
- See the specifications page for proper wire sizes and circuit breaker sizes.
- Connect the control cables according to the diagrams on page 14.
- Make power connections per diagram on page 14.
- Remove the handle on the right side of the outdoor unit.
- Remove panel on the right front.
- Remove the cable clamp and connect the power connection cable to the terminal.
- Wiring should be terminal to terminal and to correct indoor unit. Do not cross wires!
- Reattach the cable clamp.
- Reinstall the handle.
Connect the Cable to the Outdoor Unit
For models: MZG434HP16230CA, MZC424HP14240CA, 34MH46ZOGX, and 24MH44ZOCX.
1. Remove cable knock-outs (A water tight cable strain relief or conduit is recommended here).
2. Unscrew two screws to remove side panel.
3. Feed cable wire through knock-out holes.
4. Connect the wires to the terminals. (See wiring diagram Figure 15).
5. Replace side panel with the screws.
6. Secure wire cables.

Typical Electrical Wiring for Quad Unit (Dual Zone connection will not use units “C” and “D” connections.)
Figure 15
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Electrical connection of the indoor unit
Open the front cover by pressing inward on the sides of the cover near the bottom to release, then pull bottom
of cover outwards.
950-0153 - 15 - June 17, 2010
Figure 17
Feed the cable wire in from the rear of unit.
Open the electric box cover; connect the wires to the terminal strip individually according to the wiring
diagram above. Ensure that the colors of the wires and terminal No. are the same as the wiring diagram.
Tighten terminal screws for safe connections.
DO NOT CROSS WIRES
INDOOR UNIT A INDOOR UNIT B INDOOR UNIT C INDOOR UNIT D
Figure 16
Screws
ConnectingCable
FrontPanel
TerminalBoard
ElectricBox
Cover
Cabletobefed
from rear of unit
Identify Connecting
Cables A, B, C, or D.
Will vary by Model.
After wiring, replace the electric box cover, and then close the front panel by pressing the corners inward to
latch.

950-0153 - 16 - June 17, 2010

EVACUATION OF THE REFRIGERATION TUBES AND INDOOR UNIT
After connecting the indoor and outdoor units, evacuate the air from the line set and the indoor unit as follows:
Leak Testing
1. Connect the charging hoses to the low side of the manifold and the service port of the suction valve (See
figure 20b).
950-0153 - 17 - June 17, 2010
2. Connect the center hose of the manifold valve to a nitrogen source.
NOTE: The nitrogen gas cylinder is used in a vertical standing position.
3. Charge system with nitrogen to 150 PSI and check for leaks, using standard
industry leak detection methods.
Shut-off Valve
Flare Nut
Nut
Service Port
Valve Core
4. Remove the nitrogen by opening the manifold valves. Fig. 19
Perform previous steps 1 to 4 on all indoor units. (See figure 20)
Vacuum Purge
1. Connect the center hose of the manifold valves to a vacuum pump, and open fully the low and high
pressure sides of the manifold valves.
DO NOT OPEN SERVICE PORT VALVES
2. Turn on the vacuum pump. Evacuate system for about 30 minutes and confirm that the vacuum reading is
500 microns.
3. Close all manifold valves and turn off the vacuum pump. After waiting for several minutes, confirm that the
vacuum reading of the manifold has not changed. If the vacuum reading has changed, there is a leak that
must be found and repaired before continuing.
Perform previous steps 1 to 3 on all indoor units. Then proceed with the next step (4).
4. Remove the valve caps from all valves. Slowly open each liquid line fully using a hexagonal Allen wrench.
Use the same procedure on the suction valve.
5. Securely tighten the caps back onto liquid and suction the valves.
6. Check for gas leaks from all connections. Test with an electronic leak detector, or with soapy water and
check for bubbles. Be sure to wipe off the soap with a clean cloth after leakage test.

950-0153 - 18 - June 17, 2010

950-0153 - 19 - June 17, 2010
START UP TESTING
Preparation
1. Double check that all wiring has been properly connected.
2. Check that tubing has been properly connected and ensure the suction and liquid side service valves are
fully open.
3. Review remote control functions in the Operators manual.
Operational Test
Note: The cooling test may be performed if the outdoor temperature is between 41 ºF to 118 ºF.
The heating test may be performed if the outdoor temperature is between 5 ºF to 75 ºF.
1) With the unit turned on, press the mode button and select “COOL” mode for all indoor units (see Note
above). Allow 3 minutes for compressor delay timer to expire.
2) Press the “–” button until it reads 61 ºF on all indoor units.
3) Operate indoor units for no less than 15 minutes in the cooling mode.
4) Press the “FAN” button to select high fan speed on all units.
5) After operating for several minutes, check for cool air flow. Outlet temperature should be 20 to 24 ºF lower
than ambient temperature.
6) If cooling mode is operating properly, check for proper heat operation.
7) Press the mode button to select “HEAT” (see Note above).
8) Press the “+” button until it reads 86 ºF.
9) Allow approximately 5 minutes for compressor delay timer to expire before unit will operate.
10) The indoor fan will turn on and heat should be present.
11) If unit(s) does not perform as described, see the troubleshooting section.
12) All functions should be tested for operation, see Operators manual. Review remote control functions with
owner.
13) Emergency operation button – test to confirm proper operation (see Operators manual).
Notes:
1. Indoor fan will not turn off in the cooling mode.
2. Indoor fan will turn off in heating mode shortly after the set point has been satisfied.
3. Unit may require several minutes to confirm the condition of temperature set point and system functions.

950-0153 - 20 - June 17, 2010
Ductless Mini-Split Systems (Dual Zone) Outdoor Unit
[TZ] 241-0024-C MZG424HP16230CA
Model Number [SB] 241-1024-C 24MH46ZOGX
Rated Voltage & Frequency and Phase 208-230 / 1PH
Circuit Breaker Size (A) 25A
Total Current (RLA) cooling (A) 15.9
Total Current (RLA) heating (A) 15.9
Working Temperature Range (cooling °F) 41 to 118
Working Temperature Range (heating °F) 5 to 75
Refrigerant (R410A), (lbs) 5.5
Rated Capacity (BTU) 24,000
Capacity Invert Range (BTU) 10,000 / 28,000
Input / Actual Input (W) 1100 / 2250
Max. Power (W) 3300
Max Current (A) 16.9
Cooling
SEER 16
Rated Capacity (BTU) 28,000
Capacity Invert Range (W) 9,000 / 33,000
Input / Actual Input (W) 1250 / 2600
Max. Power (W) 3500
Max Current (A) 17.6
Heating
Declared COP / Actual COP
(w/w.h.) 8.2
Model FW60C
Output (W) 60
Capacitor (UFD) 3
Fan Motor FLA (A) 0.65
Fan Speed (RPM) (H-M-L) 780/ 620 / 600
Fan Motor
Fan Type Axial Fan
Fan Blade Diameter (in) 18.11
Outdoor Fan Air Flow Volume of Outdoor
Unit (CFM) 2000
Model C-7RZ233H1A
TYPE Rotary
Brand SANYO
Capacity (W) 7110
Compressor
Input (W) 1760
Number of Rows 2
Tube Pitch x Row Pitch (in) 1 / 0.87
Fin spacing (in) 0.0551
Fin Type Aluminum, Louvered
Tube Outside Dia. (in) 0.375
Coil Length x Height x Width
(in) 26.9 x 32 x 1.7
Condenser
Number of circuits 2
Unit Dimensions (W x D x H)
(in) 37.4 x 33.07 x 16.54
Packing Dimensions (W x Dx
H) (in) 43.31 x 17.72 x 35.63
Dimensions
& Weight
Net / Gross Weight (lb) 149.9 / 160.9
Flare Fitting Liquid line 1/4 "
Flare Fitting Suction line 1/2" [*3]
Service Port Fitting 5/16”
High Pressure (psi) 500
Low Pressure (psi) 235
Design Length (ft) 24.6 (each indoor unit)
Max Line Set Vertical Height
(ft) 16.4 (each indoor unit) [*4]
Max Line Set Length (ft) 65.6 (total)
Charge over Design Length
(oz. / ft) 0.16 [*1]
Design Pressure (PSI) 130.5 / 435.1 [*2]
Wiring (Indoor to Outdoor) 4C- 16 AWG
Connection
Wiring (Outdoor unit to Power
Disconnect) 3C- 10 AWG
*1. When the total length of liquid line is over 49.2 ft, the additional refrigerant charge is required.
*2. Design Pressure is rated under the following conditions: Indoor: Dry Bulb 80 °F, Wet-Bulb 67 °F; Outdoor:
Dry-Bulb 95 °F, 75 °F.
*3. Dual Zone uses 1/2" to 3/8” adaptor for 9K indoor unit. Not required for 12K BTU indoor unit.
*4. Each unit's height, not accumulative. Example: 2 indoor units, each unit can be a maximum of 16.4 ft
vertical. (NOTE: Outdoor unit must connect to TWO indoor units.)