48HJD/HJE Single-Package Rooftop Units Electric Cooling/Gas Heating
High performance, single-package rooftop products with the following industry leading premium features:
Cooling EERs up to 10.5
Serviceable semi-hermetic compressors
Service valves and full refrigeration system safeties
High static oversized fan motors (standard)
Variable pitch belt drive fan motors (standard)
TEMP system compatible Apollo electronic controls (optional)
Features/Benefits
Industry-leading cooling EERs The
48HJ015 (13 tons) and 017 (15 tons) units provide leading ARI
(Air Conditioning and Refrigeration Institute) certified cooling
EERs (Energy Efficiency Ratios) of 10.5 and 10.3, respectively.
The fully-rated 20-ton 48HJ025 has an EER of 9.3. These exceptionally
high ratings assure minimum operating costs.
Semi-hermetic compressors All
three 48HJ units use the Carlyle 06D semi-hermetic compressors.
These serviceable compressors are highly regarded, preferred by
owners and users, and offered exclusively on the Carrier high-efficiency
13 to 20 ton HJ units. Two 06D semi-hermetic compressors on independent
refrigeration circuits are offered on the 48HJ017 and 025 units
for 2 steps of capacity control and redundancy. A single 06D semi-hermetic
compressor with unloading capability is offered on the 48HJ015.
All compressors have service valves and a full complement of safety
devices, including high and low pressure switches, over temperature
protection, an electronic cooling lockout device, and crankcase
heaters.
High static oversized fan motors and
variable pitch belt drives The
48HJ units have oversized evaporator fan motors and variable pitch
belt drives supplied standard from the factory to provide up to
2 in. wg of external static pressure at 400 cfm per ton with wet
coils and clean filters installed. A 5 hp motor is provided standard
on the 48HJ017 (15-ton unit), and a 10 hp motor is standard on
the 48HJ025 (20-ton unit).
Easy installation The 48HJ 13 to 20 ton rooftop units are perfect for vertical supply and return roof curb mount installation on new construction, retrofit, and replacement applications. The unique industry leading compact size and weight are favored by designers, contractors, owners, and users. The compact physical size and weight are not only advantages in terms of minimizing required roof structures on new construction and retrofit jobs, but also make the 48HJ the perfect replacement unit for any of the original Carrier 48DP,DR 012-020 units installed in the late 1970s and early 1980s to meet the upgraded job requirements of the 1990s.