Unico IS18G050 iSeries, IS24G065 iSeries, IS30G080 iSeries, IS36G110 iSeries Installation Instructions Manual

INSTALLATION INSTRUCTIONS

- Inverter Heat Pump System -

OPERATING LIMITS

 Cooling Maximum conditions

Outdoor temperature : 122 °F (50°C) D.B. Room temperature : 90 °F (32°C) D.B. 73 °F (23°C) W.B.

 Heating Maximum conditions

Outdoor temperature : 75 °F (

24°C) D.B. 65 °F (18°C) W.B. Room temperature : 91 °F (27°C) D.B.

 Cooling Minimum conditions

Outdoor temperature : 5 °F (-15°C) D.B. Room temperature : 50 °F (10°C) D.B. 17 °F (6°C) W.B.

 Heating Minimum conditions

Outdoor temperature : -25 °F (

-32°C) D.B.

Room temperature : 41 °F (5°C) D.B.

1, 2, 3, 4 = the refrigerant circuit

connections on the outdoor unit

A, B, C, D = indoor unit size as

shown in the following table:

Size

Indoor Unit Model Number

IS12MPA

IS24MPB U1218L-1EA2AX

M2430BL1-EA2 + M2430CL-A

M3036BL1-EA2 + M3036CL-A

Line set sizes on Page 4.

System Type

Outdoor Unit

Indoor Unit Size Match

Circuit 1

Circuit 2

Circuit 3

Circuit 4

Single Split

IS18G050

IS24G065

B, C

IS30G080

B, C

IS36G110

B, C, D

Dual Split

IS18G050

IS24G065

B A

IS30G080

A A

B A

B B

C A

IS36G110

A A

B A

B B

C A

C B

Tri Split

IS24G065

A A

IS30G080

A A A B A A

B B A

IS36G110

A A A

B A A

B B A B B B

Quad Split

IS30G080

A A A A B A A A

IS36G110

A A A A B A A

B B A

B B B

Outdoor - Indoor unit combination table

Power Supply: 208-230V, 1 ph, ~ 60 Hz

IMPORTANT!

WARNING

CAUTION

WARNING

When wiring

ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM

Please read before installation

This air conditioning system meets strict safety and operating standards. For the installer or service person, it is important to install or service the system so that it operates safely and efficiently.

For safe installation an d trouble-free operation, you must:

• Carefully read this instruction booklet before beginning.

• Follow each installation or repair step exactly as shown.

• Observe all local, state and national electrical codes.

• Pa y close attention to all warning and caution notices

given in this manual.

• The unit must be supplied with a dedicated electrical line.

This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death.

This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage.

If necessary, get help These instructions are all you need for most installation sites and maintenance conditions.

If you require additional help for a special problem, contact our customer service department for additional instructions.

In case of improper installation The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to follow the instructions in this document.

SPECIAL PRECAUTIONS

• Ground the unit following local electrical codes.

• The Yellow/Green wire cannot be used for any connection

different from the ground connection.

• Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard.

• Do not allow wiring to touch the refrigerant tubing, compressor, or any moving parts of the fan.

• Do not use multi-core cable when wiring the power supply and control lines. Use separate cables for each type of line.

When transporting Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your fingers.

When installing... ... In a ceiling or wall

Make sure the ceiling/wall is strong enough to hold the unitweight. It may be necessary to build a strong wooden or metal frame to provide added support.

... In a room Properly insulate any tubing run inside a room to prevent "sweating", which can cause dripping and water damage to walls and floors.

... In moist or uneven locations Use a raised concrete base to provide a solid level foundation for the outdoor unit. This prevents damage and abnormal vibrations.

... In area with strong winds Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air baffle.

... In a snowy area (for heat pump-type systems) Install the outdoor unit on a raised platform that is higher than drifting snow. Provide snow vents.

When connecting refrigerant tubing

• Keep all tubing runs as short as possible.

• Use the flare method for connecting tubing.

• Apply refrigerant lubricant to the mating surfaces of the

flare before connecting them; screw by hand and then tighten the nut with a torque wrench for a leak-free connection.

• Check carefully for leaks before starting the test run.

• During installation, connect the refrigerant system and

then the wiring; proceed in the reverse order when removing the units.

• Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked, to ensure the grounding.

• Highly dangerous electrical voltages ar e used in this system. Carefully refer to the wiring diagram and these instructions when wiring.

Improper connections and inadequate grounding can cause

accidental injury and death.

NOTE: Depending on the system type, liquid and gas lines may be either narrow or wide. Therefore, to avoid confusion, the refrigerant tubing for your particular model is specified as narrow tube for liquid, wide tube for gas.

When servicing

• Turn the power OFF at the main power board before opening the unit to check or repair electrical parts and wiring.

• Keep your fingers and clothing away from any moving parts.

• Clean up the site after the work, remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced.

• Ventilate the room during the installation or testing the refrigeration system; make sure that, after the installation, no gas leaks are present, because this could produce toxic gas and dangerous if in contact with flames or heatsources.

Installation site selection – High Wall Indoor unit

TOOLS REQUIRED FOR INSTALLATION (NOT SUPPLIED)

AVOID

• Direct sunlight.

• Nearby heat sources that may affect unit

performance.

• Areas where leakage of flammable gas may be expected.

• Locations where large amounts of oil mist may occur (such as in kitchen or near factory equipment) because oil contamination can cause operation problems and may deform plastic surfaces and parts of the unit.

• Unsteady locations that will cause noise or possible water leakage.

• Locations where the remote control unit will be splashed with water or affected by dampness or humidity.

• Making holes in areas where electrical wiring or conduits are located.

of the room can be uniformly cooled.

• Select a sufficiently strong location to support the weight of the unit.

• Select a location where tubing and drain hose have the shortest run to the outside.

• Allow access for operation and maintenance as well as unrestricted air flow around the unit.

Installation site selection - Outdoor unit AVOID

• Heat sources, exhaust fans.

• Direct sunlight.

• Damp, humid or uneven locations.

• Making holes in areas where electrical wiring or

conduits are located.

• Choose places as cool as possible and well ventilated.

• Use lag bolts or equal to bolt down the unit, reducing vibration and noise.

• Select an appropriate position from which every corner

1. Standard screwdriver 7. Hacksaw 13. Torque wrench (Yellow Jacket

2. Phillips head screwdriver 8. Drill bits 5/16" (8 mm) dia. #60650 or equal)

3. Knife or wire stripper 9. Hammer 14. Adjustable Wrench

4. Tape measure 10. Drill 15. Reamer (for de-burring)

5. Level 11. Tube cutter 16. Hex key, 5mm

6. Sabre saw or hole saw 12. Tube flaring tool

17. Unico P/N: A02131-K01. Communication Tool for Troubleshooting and upgrading firmware (requires Windows PC)

Item

Qty

Description

Adapter, reducer, 3/8M x 1/2F with washer and flare cap

Adapter, reducer, 1/2M x 3/8F with washer and flare cap

3 1 Cap, pipe, plastic

4 1 Connector, drain, 3/4” (18 mm) hose barb

* The IS36G110 provides quantity of 2. The outdoor unit has two drain holes. If a drain tube is needed, snap

connector into desired hole and slip plastic drain tube over the barb. Plug the other hole with the plastic cap.

Indoor Unit Model

M3036CL1-A

Item

Qty

Description

1 1 Adapter, splitter, 1/2F x 3/8F x 5/8M

2 1 Adapter, reducer, 1/4F x 3/8M with washer

IS12MPA IS24MPB

Item

Qty

Description

1 1 Remote control

2 2 Battery, AAA

3 1 Remote cradle (for mounting)

4 2 Screws

Table 1. Line set Tubing Sizes, Outside Diameter

INDOOR

UNIT SIZE

Model

SMALL TUBE (LIQUID LINE)

LARGE TUBE (VAPOR LINE)

IS12MPA

1/4" (6,35 mm)

3/8" (9,52 mm)

IS24MPB U1218L-1EA2AX

1/4" (6,35 mm)

1/2" (12,70 mm)

M2430BL1-EA2 + M2430CL-A

M3036BL1-EA2 + M3036CL-A

3/8" (9,52 mm)

5/8" (15,88 mm)

1 3

ACCESSORIES SUPPLIED WITH THE OUTDOOR UNIT

ACCESSORIES SUPPLIED WITH THE INDOOR UNIT

ADDITIONAL MATERIAL REQUIRED FOR INSTALLATION (NOT SUPPLIED)

1. Line set: Deoxidized annealed copper tube for refrigerant tubing connecting the units of the system; it has to be insulated with insulation, minimum thickness 5/16 inch (8 mm). Minimum tubing thickness should be 0.031 inch (0.8 mm).

2. Refrigerant: R410A (if lineset length exceeds standard pre-charged amount)

3. Drain line (if needed): Plastic tubing (I.D. 3/4 inch [18 mm]).

4. Vacuum pump lubrication oil for flare connections (about 1 oz. [30g]).

5. Communication cable: 2-wire shielded cable, 18 ga. (minimum)

6. Electric wire: use insulated copper wires per local codes.

7. Tubing insulation

There are five rules for the refrigerant tubing related to length and height between components.

Outdoor unit

Number of IDU

PRE-CHARGED (AS SHIPPED)

WITH ADDITIONAL REFRIGERANT*

L Tot.

L1, L2, L3, L4

L Tot.

L1, L2, L3, L4

IS18G050

SINGLE-SPLIT

25 ft (7.5 m)

65 ft (20 m)

DUAL-SPLIT

50 ft (15 m)

40 ft (12 m)

100 ft (30 m)

80 ft (25 m)

IS24G065

SINGLE-SPLIT

65 ft (20 m)

115 ft (35 m)

DUAL-SPLIT

100 ft (30 m)

80 ft (25 m)

150 ft (45 m)

100 ft (30 m)

TRI-SPLIT

100 ft (30 m)

65 ft (20 m)

150 ft (45 m)

80 ft (25 m)

IS30G080 IS36G110

SINGLE-SPLIT

100 ft (30 m)

164 ft (50 m)

DUAL-SPLIT

130 ft (40 m)

100 ft (30 m)

210 ft (65 m)

100 ft (30 m)

TRI-SPLIT

130 ft (40 m)

100 ft (30 m)

210 ft (65 m)

100 ft (30 m)

QUAD-SPLIT

130 ft (40 m)

100 ft (30 m)

210 ft (65 m)

100 ft (30 m)

Lineset Size

Additional Refrigerant

Example: An IS18G050 as single-split with 1/4” x 3/8” lineset of 60

ft. The excess line length is 35ft (60ft - 25ft = 35ft). You must add 35ft x 0.16oz/ft = 5.6 oz. R-410A.

No additional charge of compressor oil is necessary.

1/4” x 3/8”

0.16 oz/ft (15g/m)

1/4" x 1/2”

0.22 oz/ft (20g/m)

3/8” x 5/8”

0.49 oz/ft (45g/m)

maximum

19 ft (6 m)

L2L2

OUTDOOR UNIT

INDOOR UNIT

IL00533a.cvx

maximum

32 ft (10 m)

maximum

32 ft (10 m)

TUBING DESIGN LIMITS

MAXIMUM LINE LENGTHS ALLOWED

ADDING REFRIGERANT

#1: (Height) The highest indoor unit must be less than 32 ft (10 m) above the outdoor unit. #2: (Height) The lowest indoor unit must be less than 32 ft. (10 m) below the outdoor unit. #3: (Height) The highest indoor unit must be less than 19 ft. (6 m) above the lowest indoor unit. #4: (Length) The longest distance from any indoor unit to the outdoor unit must be less than L1, L2, L3, L4. #5: (Length) The sum total of distance of each indoor unit to the outdoor unit must be less than Ltot.

L Tot. = Sum of the length of all line sets (L1 + L2 + L3 + ...)

* If additional refrigerant is required, add the following amount of R410-A:

Single-Split (1 Indoor Unit)

IS18G050

IS24G065

IS30G080

EMIXPORT: SEE EMIX UNIT OR EMIX TANK INSTALLATION MANUAL

TUBE CONNECTIONS

For single-split applications, always connect the indoor unit to Circuit “1” of the outdoor unit.

Single-Split (1 Indoor Unit) – Continued

IS36G110

ADAPTER, SPLITTER 1/2F X 3/8F X 5/8M INCL. WITH INDOORUNIT

ADAPTER,REDUCER, FLARE 1/4F X 3/8M INCL. WITH INDOOR UNIT

Dual-Split (2 Indoor Units)

IS18G050

IS24G065

Dual-Split (2 Indoor Units) – Continued

IS24G065

IS30G080 and IS36G110

Dual-Split (2 Indoor Units) – Continued

IS30G080, IS36G110 IS36G110

(SAC 37.4255.109.02)

Tri-Split (3 Indoor Units)

IS24G065

IS30G080, IS36G110

Tri-Split (3 Indoor Units) – Continued

IS30G080, IS36G110

IS36G110

Quad-Split (4 Indoor Units)

IS30G080, IS36G110

16"

(400)

60"

(1500)

12"

(500)

80"

(2000)

80"

(2000)

(100)

12"

(500)

Dimensi on s in inch es (mm)

(100)

16"

(400)

(100)

Insulation

min. 5/16" (8 mm)

OUTDOOR UNIT INSTALLATION

Minimum operation and maintenance area. Allow generous clearance for servicing and to avoid air

recirculation. Air flow should be away from building.

Provide a solid base for outdoor unit raised from the ground level. Fix unit to base using 4 anchor bolts.

Remove the side cover, to connect the refrigerant

lines and wiring. Connect the refrigerant lines first. Then connect the power line and interconnecting wires to outdoor unit on the terminal strip and secure them with clamps.

Heat pump drain connection. Use, if necessary, the

accessories supplied. Remove plug and insert drain connection. Then attach plastic tube to the drain connection by slipping over the barbed end. Use 3/4 inch (18 mm) plastic tubing.

Plug the other hole with the plastic cap.

IS30G080

Use insulated copper tube. Cut approximate 12-20 inches (30-50 cm.) longer than actual distance

between units.

Remove burrs at the ends of the copper tubes. Hold the tube end downward and be sure that no dirt falls

into the tube.

TUBE DIA.

TIGHTENING TORQUE (Approx.)

1/4" (6.35 mm)

10 – 15 lb•ft (150 – 200 kg-cm or 14 – 20 N-m)

3/8" (9.52 mm)

25 – 30 lb•ft (350 – 400 kg-cm or 34 – 40 N-m)

1/2" (12.7 mm)

35 – 40 lb•ft (500 – 550 kg-cm or 47 – 55 N-m)

5/8" (15.9 mm)

45 – 60 lb•ft (600 – 800 kg-cm or 60 – 80 N-m)

CAUTION

Lubricate

approx. 1/8" (3 mm)

45°

GHJ

Insert flare nuts removed from the units, than make a flare at the end of copper tubes.

Tighten connections using a wrench and a torque wrench (Yellow Jacket #60650 or equal); apply

specified torque (see table).

A good flare has the following characteristics:

- inside surface is glossy and smooth

- edge is smooth

- tapered sides are of uniform length. Follow the instructions of the flaring tool to make the

proper flare. Apply refrigerant lubricant to the matching surface of

the flare and union before connecting them together. Avoid putting oil on the threads as much as possible as this could lead to over-tightening.

Insulate tubes leaving connections uncovered for leak test. Insulate the connection after leak testing.

To prevent refrigerant leaks, be sure to properly form the flare and to leak test the connection prior to wrapping the joint with insulation. To prevent the formation of condensation on the exterior of the connections, fully insulate the connections.

+ 33 hidden pages

Unico IS18G050 iSeries, IS24G065 iSeries, IS30G080 iSeries, IS36G110 iSeries Installation Instructions Manual

Specifications and Main Features

Frequently Asked Questions

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