Carrier 38HDR Product Data

36
Human Interface
The 40QAC/QAQ units are controlled by a wired thermostat. For
additional details on thermostat features, refer to the Owner’s
Manual of the individual thermostat model 53DFS250--HW.
Operating Mode Memory
After the system is turned off, or after a power failure, the system
remains in the last operating mode selected. When the system is
turned back on, or when power is automatically restored, operation
continues in the same operating mode as when the system shut
down.
Electric Heat
The 40QAQ units have electric heaters factory installed as shown
in the following table.
Model KW
40QAQ024 2
40QAQ036 3
40QAQ048 4
40QAQ060 5
The electric heater is supplementary. When the heat pump runs for
at least 2 minutes and the temperature spread between the setpoint
is between 3_ to 8_ (depending on dead--band setting), the electric
heater is energized.
AIR DISTRIBUTION
All ceiling--suspended units are equipped with an automatic air
sweep feature which automatically directs the airflow louvers up
and down to provide optimum room air circulation. If the
automatic sweep feature is not desired, temporarily start the
automatic sweep using the toggle switch on the unit. When the
louvers are in the desired position, turn the automatic sweep off to
hold the louvers in that position.
Outside Air
Up to 30% of outside air can be introduced to the 40QAC/QAQ
units through the pre--punched knockouts. If the unit is installed
next to an outside wall, the Fresh Air Intake Kit can be used. A
Power Ventilation Kit is also available for those applications where
there is a need to overcome static pressure in the fresh air intake
duct.
Air throw data
System Size
Air Throw Data ft (m)
High
Speed
Medium
Speed
Low
Speed
Cooling Only
018 25 (7.6) 20 (6.1) 16 (4.9)
024 30 (9.1) 25 (7.6) 20 (6.1)
030 40 (12.2) 35 (10.7) 30 (9.1)
036 40 (12.2) 35 (10.7) 30 (9.1)
048 45 (13.7) 42 (12.8) 38 (11.6)
060 45 (13.7) 35 (10.7) 30 (9.1)
Heat Pumps
018 22 (6.7) 18 (5.5) 14 (4.3)
024 27 (8.2) 23 (7.0) 18 (5.5)
030 38 (11.6) 33 (10.1) 29 (8.8)
036 38 (11.6) 33 (10.1) 29 (8.8)
048 40 (12.2) 38 (11.6) 36 (11.0)
060 40 (12.2) 30 (9.1) 26 (7.9)
40QAC/38HDR -- 40QAQ/38QR
R

Carrier 38HDR Specifications

General

Brand	Carrier
Model	38HDR
Category	Air Conditioner
Language	English