Allied 4DHV Mini-Split Series - Test Run Procedures; Dry Mode Operation - Indoor Units; Test Run Instructions

508067-01Issue 2016Page 32 of 75
Indoor Unit Connection Points for Centralized
Controller
Mini-split indoor units can be connected to a centralized
controller or a BACnet or LonWorks gateway using the
XYE terminals on the indoor unit main board.
To CCM
Comm.Bus
X Y
(
E
)
Y/G
Figure 20. Indoor Unit Connection Points
(Typical Wiring Diagram)
Figure 21. Typical Indoor Unit Connection Points
Dry Mode Operation - Indoor Units
Procedure
1. Press the MODE button to select DRY mode.
2. Press the UP/ DOWN button to select the desired
temperature. The temperature setting range is from
62°F to 86°F in one degree increments.
NOTE: The blower is preset at a low speed and cannot be
changed therefore it will get cold and most likely will over
shoot the temperature setting by 6-10 degrees depending
on the room size or other various factors. Also the Follow
Me mode does not operate in this mode. The Follow Me
mode is only available when a return air sensor is utilized.
Typically in most cases the Follow Me mode will not be
sucient to remove excessive humidity.
NOTE: In addition, the outdoor units do not have a
humidistat installed therefore they are unable to determine
humidity levels. This product is not recommend as a main
source for dehumidication. Note, this well over shoot the
temperature by 6-8 degrees below what was set for dry
mode.
NOTE: Using this mode will over shoot the temp by 6-8
degrees below what was set for dry mode.
Dry Mode Operation Sequence
When in dry mode operation the unit is actually in cooling
mode with a low speed blower operation. The compressor
will stop when the room temperature is two degrees Celsius
lower than the temperature setting.
However there is a temperature compensation for cooling
mode that is two degrees Celsius. So the unit will stop
when the temperature is four degrees Celsius lower than
the room temperature settings.
NOTE: Four degrees Celsius is equivalent to 8°F
dierence.
Test Run - Indoor Units
Only perform test run after you have completed the
following steps:
• Electrical Safety Checks – Conrm that the unit’s
electrical system is safe and operating properly
• Gas Leak Checks – Check all are nut connections
and conrm that the system is not leaking
• Conrm that gas and liquid (high and low pressure)
valves are fully open.
Test Run Instructions
You should perform the Test Run for at least 30 minutes.
1. Connect power to the unit.
2. Press the ON/OFF button on the remote controller to
turn it on.
3. Press the mode button to scroll through the functions,
one at a time:
4. Let each function run for ve minutes, and perform the
following checks: