Pioneer Multi (4) Circuit Quantum Ultra Series 22.5 SEER2 Quad Zone Outdoor Section Inverter++ Energy-Star Air Conditioner Heat Pump 230V - YN040GLSI24M4G

Pioneer Multi (4) Circuit Quantum Ultra Series 22.5 SEER2 Quad Zone Outdoor Section Inverter++ Energy-Star Air Conditioner Heat Pump 230V - YN040GLSI24M4G

• Ultra High Efficiency Quad Zone (4 Circuit) Outdoor Condensing System
• Cooling Capacity: 35,000 BTU with 22.5 SEER2 / 12.0 EER2 efficiency
• Heating Capacity: 36,000 BTU with 9.5 HSP2 / 3.5 C.O.P. efficiency
• Energy-Star Cold-Climate Designated Performance
• Wide Ambient Operation Range (As low as -13°F in Heating / As high as 131°F in Cooling)
• Factory Precharged to Cover Up to 100 Ft. of Total Combined Attached Lineset Length
  
• Can be Utilized as a Stronger Triple or Dual-Zone System by Leaving 3rd and/or 4th Zone Closed

Performance

• Power Supply: 208~230V, 60Hz, 1Ph
• Communication Protocol: Current Loop
• Min-Max Load Attached: 18,000~48,000 BTU/h
• Cooling Rated Capacity: 35,000 BTU/h
• Cooling SEER2 (Ductless): 22.5 BTU/W.h
• Cooling EER2 (Ductless): 12.0 BTU/W.h
• Heating Rated Capacity: 36,000 BTU/h
• Heating HSPF2 (Ductless): 9.5 BTU/W.h
• Heating C.O.P.2 (47°F/5°F): 3.5 / 2.0 W/W
• Refrigerant Type: R454B
  
• Suitable Area: 700~1350 Sq.F
• Sound Level: 65.0 dB(A)
• Circuit Breaker Utilized: 30A (double-pole)
• Net Dimensions (WDH): 42-1/4 x 18-3/8 x 33-1/2 Inches
• Carton Dimensions (WDH): 44-5/8 x 20-7/8 x 38-1/8 Inches
• Net / Gross Weight: 145 / 170 Lbs

Manuals 

• Technical Brochure
• Submittal Sheet
• Installation Manual (Multi-Split Addendum)
• Service Manual
• AHRI Certificate (All Ductless / All Ducted)
• Energy Guide

Specifications

9,000 BTU Compatible Units

• Wall Mounted: WT009GLSI24HLG (32-1/4 x 7-5/8 x 12 inches WDH)
• Ceiling Cassette: CT009GLSILCFHG (22-1/2 x 22-1/2 x 9-5/8 inches WDH)
• Ductable Concealed: RT009GLSILCFHG (27-1/2 x 19-1/4 x 7-7/8 inches WDH)

12,000 BTU Compatible Units

• Wall Mounted: WT012GLSI24HLG (36-1/4 x 7-5/8 x 12 inches WDH)
• Ceiling Cassette: CT012GLSILCFHG (22-1/2 x 22-1/2 x 9-5/8 inches WDH)
• Ductable Concealed: RT012GLSILCFHG (27-1/2 x 19-1/4 x 7-7/8 inches WDH)

18,000 BTU Compatible Units

• Wall Mounted: WT018GLSI24HLG (43-1/8 x 8-3/4 x 13 inches WDH)
• Ceiling Cassette: CT018GLSILCFHG (22-1/2 x 22-1/2 x 9-5/8 inches WDH)
• Floor-Ceiling Flex Console: UT018GLSILCFHG (41-1/2 x 9-1/4 x 26-1/2 inches WDH)
• Ductable Concealed: RT018GLSILCFHG (35-1/2 x 19-1/4 x 7-7/8 inches WDH)

24,000 BTU Compatible Units

• Wall Mounted: WT024GLSI24HLG (43-1/8 x 8-3/4 x 13 inches WDH)
• Ceiling Cassette: CT024GLSILCFHG ( 33-1/8 x 33-3/4 x 10-3/4 inches WDH)
• Floor-Ceiling Flex Console: UT024GLSILCFHG (41-1/2 x 9-1/4 x 26-1/2 inches WDH)
• Ductable Concealed: RT024GLSILCFHG ( 43-1/4 x 17-3/4 x 7-7/8 inches WDH)

Min. / Max. Loading

18,000 / 48,000 BTU/h.

Notes

• Different models of all available matching indoor units can be combined in any order to create a multi zone split system, up to a quantity of the number of available circuits.
• Not all available circuits need to be utilized with an attached indoor unit. 66% or higher of the total capacity utilization is recommended.
• Every indoor unit attached to a multi zone system will operate at a random, self-regulated capacity, based on the actual demand it measures from the zone it is serving (Between 30% to 100% of its rated capacity) or turn OFF as needed.
• Outdoor unit will also self-regulate its total output capacity, based on the total demand it reads from all the simultaneously running indoor units at any given moment, up to its maximum rating capacity.
• With multi split systems, the total demand from the outdoor unit, will seldomly exceed 75% of the total available capacity of the combined indoor unit group due to load fluctuations of each indoor unit.
• Therefore, total attached indoor unit capacity can be selected up to 133% of the supporting outdoor unit's rated capacity.
• Although very seldom, if the total demand from the combined group of indoor units' exceeds the rated capacity of the outdoor unit, the capacity of the each indoor unit will be annotated accordingly.
• For high demand applications, max loading limits may need to be reduced up to 20% to avoid underperformance risks during some extreme conditions.

What Our Experts Think

• Quad-zone design powers up to 4 indoor units from a single outdoor system.

• 36,000–40,000 BTU capacity delivers reliable comfort for large homes or multi-room setups.

• High 22.5 SEER2 rating with Energy-Star certification ensures maximum efficiency.

• Inverter++ technology provides stable temperature control with reduced energy use.

• 230V heavy-duty system built for residential and light commercial applications.

Q&A

Q: How many zones does this unit support?
A: Up to 4 indoor zones can be connected for independent climate control.

Q: Is it energy efficient?
A: Yes, it’s Energy-Star certified with a 22.5 SEER2 rating for exceptional savings.

Q: What type of power does it require?
A: Operates on a 230V electrical supply, suitable for high-capacity systems.

Maintenance Tips

• Keep the outdoor unit free of dirt, leaves, and obstructions.

• Check refrigerant lines and electrical connections annually.

• Clean indoor filters every 2–4 weeks depending on usage.

• Schedule yearly professional servicing to maintain system efficiency.