50HJQ Rooftop Heat Pump Unit from Carrier


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50HJQ WEATHERMASTER®

Single Package Rooftop
High-Efficiency
Heat Pump Units
12.5 and 15 Nominal Tons

50HJQ014, 016 units are Carrier’s best 12.5 and 15 ton, electric heat pump outdoor packaged units. These units feature both industry leading cooling efficiencies and Carlyle 06D serviceable semi-hermetic compressors.

Performance Features

Single 06D semi-hermetic compressor with one electric unloader on size 014 units
Dual 06D semi-hermetic compressors are electrically and mechanically independent refrigeration circuits on all size 016 units
Liquid line filter driers
Low outdoor temperature cooling operation to 40° F is standard
Two-stage cooling on all models
Automatic changeover (when used with auto-changeover thermostat)
Two-inch, disposable-type fiberglass return air filters

Installation Features

Compressor suction and discharge service valves
Single point electrical service entry
Adjustable speed main blower drivers

Reliability Features

Provision for horizontal return standard on base unit
Manually adjustable outside air intake for up to 25% outside air

Maintenance Features

Compressor protection includes high and low-pressure cutouts, overcurrent and overtemperature protection.
Dual freezestat protection
Crankcase heaters are standard
Compressor circuit-breaker protection standard
Time Guard II control is standard on both size 014 and on lead compressor on size 016
Three direct-drive propeller condenser-fan motors are internally protected
Cabinet made of Weather Armor pre-painted, baked enamel finish and insulated with neoprene-coated fiberglass
Control circuit protected by circuit breaker
Spring return on power-loss EconoMi$er IV

Standard Warranty

Standard one-year product warranty
Five-year warranty on the compressor
Five-year warranty on factory-installed electric heaters

Options/Accessories

	Factory Installed Option	Field Installed Accessory
25% open two-position damper		Yes
Alternate motors and drives	Yes	Yes
Barometric relief damper (not for use with horizontal roof curb)		Yes
Convenience outlet (load side)	Yes
Copper fins Indoor and outdoor coil	Yes
Copper fins outdoor coil	Yes
E-coat outdoor coil (aluminum)	Yes
E-coat outdoor coil (copper)	Yes
EconoMi$er IV with controller	Yes	Yes
EconoMi$er2 (without controller)	Yes	Yes
Electric heat		Yes
Electronic programmable thermostat		Yes
Emergency heat package		Yes
Fan/filter status		Yes
Hinged access panels	Yes
Horizontal adapter curb		Yes
Hinged panel kit for economizer		Yes
Hydronic glycol coil		Yes
Indoor air quality (CO₂) sensor		Yes
Manual outdoor-air damper		Yes
Motormaster® V head pressure control (low ambient kit)		Yes
Novar control	Yes
Outdoor air enthalpy sensor		Yes
Power exhaust without barometric relief		Yes
Pre-coat aluminum fins on outdoor coil	Yes
PremierLink™ DDC communicating control	Yes	Yes
Return air enthalpy sensor		Yes
Return air temperature sensor		Yes
Roof curbs (vertical and horizontal discharge)		Yes
Thermostats and subbases		Yes
Time Guard II control circuit (compressor cycle delay)		Yes
Unit-mounted non-fused disconnect	Yes
Winter start time delay		Yes