WeatherMaster® High-Efficiency Single-Packaged Rooftop Units 48HC Gas Heating : Electric Cooling with Puron® (R-410A) Refrigerant 3 to 25 Nominal Tons: 马来西亚的首选 United Faith Sdn Bhd

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Gas Heating / Electric Cooling with Puron® (R-410A) Refrigerant

3 to 25 Nominal Tons

48HC WeatherMaster® rooftop units were designed by customers for customers. With a gauge plug, centralized control center, plug & play accessory board, ''no-strip screw'' collars, and handled access panels, we’ve made the unit easy to install, easy to maintain, and easy to use. Units are pre-wired and pre-charged with environmentally sound Puron® (R-410A) refrigerant at the factory. The units are factory tested in both heating and cooling modes.

Performance Features

ASHRAE 90.1 and Energy Star compliant
Up to 15.6 SEER, 13.0 IEER, and 12.2 EER
Gas efficiencies up to 82%
Standard cooling operating range up to 125 °F (52°C) and down to 35°F (2°C). Low ambient controllers can bring cooling operation down to -20°F (-29°C)
Innovative non-corrosive composite condensate pan in accordance with ASHRAE 62 Standard, sloping design; side or center drain
Exclusive IGC solid-state control for on-board diagnostics with LED error code designation, burner control logic and energy saving indoor fan motor delay
Pre-painted exterior panels and primer-coated interior panels tested to 500 hours salt spray protection

Maintenance Features

Control terminal board facilitating simple safety circuit troubleshooting and simplified control box arrangement
Access panels with easy grip handles and tool-less filter access door
Innovative, easy starting, no-strip screw feature on unit access panels
Optional hinged access panels also available
Belt drive evaporator-fan motor and pulley combinations available on all three phase models to meet any application
Electric Drive x13 (5 speed/torque) motor on 04 to 06 models
Two-inch disposable return air filters

Installation Features

Same footprint as installed Carrier 3-5 and 7.5-10 ton rooftops back to 1989, reducing installation costs and time
Field convertible from vertical to horizontal airflow for slab mounting (sizes 04 to 14)
Provisions for thru-the-bottom power entry capability as standard
Single point gas and electric connections
Full perimeter base rail with built-in rigging adapters and fork truck slots
Dedicated vertical and horizontal airflow models available (factory option on size 17 to 28 units)

Reliability Features

Scroll compressors with internal line-break overload protection
24-volt control circuit protected with resettable circuit breaker
Permanently lubricated evaporator-fan motor
Totally enclosed condenser motors with permanently lubricated bearings
Low pressure and high-pressure switch protection
Exclusive IGC anti-cycle protection for gas heat operation
Solid-state electronic direct spark ignition system and flame roll-out safety protector

Factory-Installed Options

Cabinet
- Thru-the-base electrical or gas-line connections
- Hinged access panels
- Foil-faced insulation
Coil Options
- Cu/Cu indoor and/or outdoor coils
- Pre-coated outdoor coils
- Premium, E-coated outdoor coils
Humidity Control
- Humidi-MiZer Adaptive dehumidification system
Condenser Protection
- Condenser coil hail guard (louvered design)
Controls
- ComfortLink™ DDC communicating controller
- PremierLink™ DDC communicating controller
- RTU OPEN™ open-protocol controller
- Smoke detector (supply and/or return air)
Energy Recovery
- EnergyX® Factory Integrated Energy Recovery
Economizers & Outdoor
- Air Dampers
- EconoMi$er IV (for electro-mechanical controlled RTUs)
- EconoMi$er X (for electro-mechanical controlled RTUs with CA Title 24 FDD)
- EconoMi$er2 (for DDC controlled RTUs)
- Ultra-low leak economizer dampers
- Motorized 2 position outdoor-air damper
- Manual outdoor-air damper (sizes 17-28)
- Barometric relief
- Power exhaust (sizes 17-28)
Economizer Sensors & IAQ Devices
- Single dry bulb temperature sensors
- Single enthalpy sensors
- CO2 sensor (wall, duct, or unit mounted)
Gas Heat
- Stainless steel heat exchanger
- Flue discharge deflector
Indoor Motor & Drive
- Multiple motor and drive packages
- Staged Air Volume (SAV) Indoor Fan Speed System (sizes 08-28)
Low Ambient Control
- Motormaster® head pressure controller
Power Options
- Convenience outlet (powered)
- Convenience outlet (unpowered)
- Non-fused disconnect
- HACR Circuit Breaker

Field-Installed Accessories

Cabinet
- Thru-the-base electrical or gas-line connections
Condenser Protection
- Condenser coil hail guard (louvered design)
Controls
- Thermostats, temperature sensors, and subbases
- PremierLink™ DDC communicating controller
- RTU OPEN™ open-protocol controller
- Smoke detector (supply and/or return air)
- Time Guard II compressor delay control circuit
Energy Recovery
- EnergyX® Factory Integrated Energy Recovery
Economizers & Outdoor
- Air Dampers
- EconoMi$er IV (for electro-mechanical controlled RTUs)
- EconoMi$er X (for electro-mechanical controlled RTUs with CA Title 24 FDD)
- EconoMi$er2 (for DDC controlled RTUs)
- Ultra-low leak economizer dampers
- Motorized 2 position outdoor-air damper
- Manual outdoor-air damper
- Barometric relief
- Power exhaust
Economizer Sensors & IAQ Devices
- Single dry bulb temperature sensors
- Differential dry bulb temperature sensors
- Single enthalpy sensors
- Differential enthalpy sensors
- CO2 sensor (wall, duct, or unit mounted)
Gas Heat
- Liquid propane (LP) conversion kit
- High altitude conversion kit
Low Ambient Control
- Winter start kit
- Motormaster® head pressure controller
Roof Curbs
- Roof curb 14” (356mm)
- Roof curb 24” (610mm)

Nominal Cooling Ton Size	Cooling Stages	AHRI Efficiency (SEER) EER	Dimensions (in) LxWxH	Low Gas Heating Input (MBtuh)	Medium Gas Heating Input (MBtuh)	High Gas Heating Input (MBtuh)	Approx. Unit Weight (lbs)
3	1	(15.0)	74 x 47 x 33	72	115	--	505
4	1	(15.6)	74 x 47 x 41	72	115	150	590
5	1	(15.2)	74 x 47 x 41	72	115	150	600
6	1	12.0	88 x 59 x 41	72	125	150	765
7.5	2	12.0	88 x 59 x 49	125	180	224	925
8.5	2	12.0	88 x 59 x 49	125	180	224	925
10	2	12.0	88 x 59 x 49	180	224	250	1099
10	2	11.5	88 x 59 x 49	180	224	250	1099
12.5	2	12.2	116 x 63 x 57	150	180	240	1430
15	2	12.0	128 x 87 x 49	220	310	400	1892
17.5	2	12.0	141 x 87 x 49	220	310	400	2102
20	2	12.0	141 x 87 x 57	220	310	400	2247
25	2	11.2	58 x 87 x 57	220	310	400	2292

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