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Cooling Maximum conditions
Outdoor temperature :
Room temperature :
Cooling Minimum conditions
Outdoor temperature :
Room temperature :
Outdoor - Indoor unit combination table
system type
outdoor unit
IS18G050
IS24G065
single split
IS30G080
IS36G110
IS18G050
IS24G065
IS30G080
dual split
IS36G110
IS24G065
IS30G080
tri split
IS36G110
IS30G080
quad split
IS36G110
Power Supply:
208-230V, 1 ph, ~ 60 Hz
Bulletin 30-121.2014.04.014
(SAC 37.4255.109.00)
OPERATING LIMITS
122 °F (50°C) D.B.
90 °F (32°C) D.B.
73 °F (23°C) W.B.
5 °F (-15°C) D.B.
50 °F (10°C) D.B.
17 °F (6°C) W.B.
Indoor Unit Size Match
1
2
Circuit
Circuit
B
B, C
B, C
B, C, D
A
A
B
A
A
B
A
B
B
A
B
A
B
B
C
A
A
B
A
B
B
C
A
C
B
A
B
A
A
A
B
A
B
B
A
B
A
B
B
B
B
A
A
B
A
A
A
B
A
B
B
B
B
1
INSTALLATION INSTRUCTIONS
- Inverter heat pump system -
Heating Maximum conditions
Outdoor temperature :
Room temperature :
Heating Minimum conditions
Outdoor temperature :
Room temperature :
3
4
Circuit
Circuit
A
A
A
A
A
A
A
A
A
A
A
A
A
B
A
A
A
A
A
A
A
A
A
A
B
A
75 °F ( 24°C) D.B.
65 °F (18°C) W.B.
91 °F (27°C) D.B.
-25 °F ( -32°C) D.B.
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 following table
Size
Indoor Unit Model Number
IS12MPA
A
IS24MPB
B
U1218L-1EA2AX
C
M2430BL1-EA2 + M2430CL-A
D
M3036BL1-EA2 + M3036CL-A
Copyright © 2014 Unico, Inc.
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Table of Contents
Related Manuals for Unico IS18G050
Summary of Contents for Unico IS18G050
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Page 1: Installation Instructions
Indoor Unit Model Number IS12MPA IS24MPB U1218L-1EA2AX IS36G110 M2430BL1-EA2 + M2430CL-A M3036BL1-EA2 + M3036CL-A IS24G065 IS30G080 tri split IS36G110 IS30G080 quad split IS36G110 Power Supply: 208-230V, 1 ph, ~ 60 Hz Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00) -
Page 2: Special Precautions
Improper connections and inadequate grounding can cause toxic gas and dangerous if in contact with flames or heat- accidental injury and death sources. Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00) - Page 3 • To make holes in areas where electrical wiring or ventilated. conduits are located. • use lug bolts or equal to bolt down the unit, reducing vibration and noise. • Select an appropriate position from which every corner Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
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Page 4: Accessories Supplied With The Outdoor Unit
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 6. Sabre saw or hole saw Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00) - Page 5 For 1/4" x 3/8" line set = 0.16 oz/ft (15g/m) For 1/4" x 1/2" line set = 0.22 oz/ft (20g/m) Example: IS18G050 as single-split with 1/4 x 3/8 line set of 60 ft, The excess line length is 35 ft. So add 35x0.16= 5.6 oz. R-410A.
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Page 6: Tube Connections
Single-Split (1 Indoor Unit) For single-split applications, always connect the indoor unit to Circuit “ ” of the outdoor unit. IS18G050 EMIX PORT: SEE EMIX UNIT OR EMIX TANK INSTALLATION MANUAL IS24G065 IS30G080 Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00) - Page 7 Single-Split (1 Indoor Unit) – Continued IS36G110 ADAPTER, REDUCER, FLARE 1/4F X 3/8M INCL. WITH INDOOR UNIT ADAPTER, SPLITTER 1/2F X 3/8F X 5/8M INCL. WITH INDOOR UNIT Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 8 Dual-Split (2 Indoor Units) IS18G050 IS24G065 Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 9 Dual-Split (2 Indoor Units) – Continued IS24G065 IS30G080 and IS36G110 Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 10 Dual-Split (2 Indoor Units) – Continued IS30G080, IS36G110 IS36G110 Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 11 Tri-Split (3 Indoor Units) IS24G065 IS30G080, IS36G110 Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 12 Tri-Split (3 Indoor Units) – Continued IS30G080, IS36G110 IS36G110 Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 13 Quad-Split (4 Indoor Units) IS30G080, IS36G110 Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
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Page 14: Outdoor Unit Installation
Plug the other hole with the plastic cap. Insulation Remove burrs at the ends of the copper tubes. Hold the tube end downward and be sure that no dirt falls into the tube. Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00) - Page 15 1/8" (3 mm) 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. Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 16 VACUUM PUMP CAPACITY 26.4 gal/h (100 /h) Tubing length: Tubing length less than 33 ft (10 m) longer than 33 ft (10 m) 10 min. or more 15 min. or more Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 17 The indoor units have to be marked as “indoor unit circuit 1, 2, 3 and 4”. Be UNIT sure that the refrigerant connection to indoor unit circuit 1, 2, 3 or 4 corresponds to its own electrical connection. UN IT UNIT Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 18 EXAMPLE: GRAINGER P/N: 3DXH5 (J/B MODEL QC-S5S) OR EQUAL Complete insulation of refrigerant tubes; wrap with insulation tape. Fix and support tubes with brackets. Seal hole in the wall, if necessary. Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
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Page 19: System Wiring Diagram
SYSTEM WIRING DIAGRAM 1 INDOOR UNIT 1 INDOOR UNIT Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00) -
Page 20: Indoor Units
2 INDOOR UNITS P OW E R SU P PL Y A C 2 0 8 -2 4 0 V 1 P H A S E 5 0 / 6 0 H z Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00) - Page 21 3 INDOOR UNITS PO W E R S U P P L Y AC 2 0 8 - 2 4 0 V 1 PH AS E 5 0 /6 0 H z Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 22 4 INDOOR UNITS 4 INDOOR UNITS Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
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Page 23: Power Supply
Low pressure High pressure DO NOT VENT! Do not vent R410A into the atmosphere. R410A is a fluorinated greenhouse gas, covered by Kyoto Protocol with Global Warming Potential (GWP) = 1975. Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00) - Page 24 3=ON R to Y1 SW 1 4=ON and from R to Y2 1=ON 2=ON SW 3 * NOTE: When using iSERIES remote R-G must always be jumpered for all SDHV models. Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 25 1=ON SW 1 2=OFF 2=OFF SW 3 SW2 SW1 SW1: SW2: 1=OFF 1=OFF SW 1 2=ON 2=ON SW 3 SW2 SW1 SW1: SW2: 1=ON 1=ON SW 1 2=ON 2=ON SW 3 Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
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Page 26: Verify Communications
If the setting is right, the unit switches to COOL mode and stops (set point: 90 °F [32 °C]). The system is ready to operate. If the setting is wrong, the STANDBY lamp flashes; check the setting of indoor units and the connections of the refrigerant circuits. Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00) -
Page 27: Temperature Display (Unit Of Measure)
“°F” is not shown when displaying the temperature using Fahrenheit units. “°C” will show only when temperature is in Celsius units. REMOTE CONTROL FUNCTIONS Refer to the Operation manual for the remote control features and functions. Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00) - Page 28 The system must be in heating mode. The compressor must be on for 30 minutes Every 120 minutes that the unit is on it activates one additional output in this sequence (S1, S2, S3). Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 29 When using standard thermostat, remove jumper between R and G on relay board. INDOOR UNIT STANDARD OR iSERIES THERMOSTAT SW2 SW1 1218 1=OFF FACTORY 2=OFF DEFAULT SW2 SW1 2430 1=ON 2=OFF SW2 SW1 3036 1=OFF 2=ON SW2 SW1 3642 1=ON 2=ON Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 30 OUTDOOR UNIT WIRING SCHEMATIC Model IS18G050 Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 31 Model ISG65 Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 32 Model IS30G080 Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 33 Switch Assy Outdoor Fan motor THERMO Thermostat Indoor Fan motor TC, TOA Thermistor REC. ASSY Receiver Assy Terminal plate Magnetic contactor Power Transformer Noise filter 4-way valve Overload relay Negative Phase relay Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 34 REMOVE ALL JUMPERS ON LED1 LED2 LED3 THERMOSTAT INPUTS. C1 C2 FLOAT STD T- DRAIN A01865-G01 OUTDOOR UNIT SWITCH STAT ALARM PUMP PUSH R O G Y1 Y2 C Thermostat indoorB board Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 35 JP1: input (either for remote channel or for low heat/cool) JP2: input (either for remote channel or for high heat/cool) JP3: factory use only (must have a jumper) JP4: factory use only (no jumper) Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
- Page 36 S3: STAGE 3 AUXILIARY HEAT AUX: (FUTURE USE) FUSE F1: 2A IL00541.cvx F1: Fuse, mini-blade, 2A, 32V (Unico part number A01412-001) Motor Adapter “Voltage Lift” Board (VLB) Converts the indoorB communication signal from 12V to 24V for the proper motor control. Legend Connections:...
- Page 37 If installing the unit where an overflow of condensate will cause damage, install a float or “wet” switch to stop the operation of the unit. C1 C2 FLOAT DRAIN ALARM OUTDOOR UNIT SWITCH PUMP T-STAT Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)
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Page 38: Condensate Pump
3 amps. For example, the alarm can switch on a remote light. C1 C2 FLOAT DRAIN A LAR OUTDOOR UNIT SWITCH PUMP T-STAT Alarm (light or relay) 230V, 1ph, 60 Hz 3A max Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00) - Page 39 1 2 3 4 5 6 7 8 1 2 3 4 5 OUTPUT INPUT (WHT) (WHT) RELAY BOARD +24V A01837-G01 HEATER THERMOSTAT (WHT) R O G Y1 Y2 C C S1S2 S3 REMOTE ON/OFF (SEE MANUAL) Bulletin 30-121.2014.04.014 Copyright © 2014 Unico, Inc. (SAC 37.4255.109.00)