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Model
MBVC1201AA-1
MBVC1601AA-1
MBVC2001AA-1
5. Use the CoolCloud HVAC phone application to configure/
test air handler operations.
NOTE: The phone application cannot test a non-communicating
outdoor unit. The thermostat will be required for outdoor unit
testing.
Charging
1. Two-stage outdoor units:
a. Provide a low stage cooling call from the
thermostat and charge accordingly.
2. Single-stage outdoor units:
a. Provide a cooling call from the thermostat and
charge accordingly.
Electric Heat Kit Testing
1. Select the electric heat icon after entering the air handler
menus in the CoolCloud HVAC phone application.
2. Select any value less than 50% for low stage operation and
any value greater than 50% for high stage operation.
Confirm thermostat heating and cooling calls function properly
with equipment.
Dehumidification
Dehumidification allows the air handler's circulator blower to
operate at a reduced speed during a combined thermostat call
for cooling and a dehumidification call from the thermostat or
humidistat. This lower blower speed increases dehumidification
of the conditioned air as it passes through the indoor coil. The
control board is equipped with a 24 volt dehumidification input
(DH) located on the thermostat wiring connector. The terminal
can be configured to enable dehumidification when the input is
energized or de-energized. When using an external dehumidistat,
connect it between the R and DH terminals. If the humidistat
closes on humidity rise or the thermostat energizes this terminal
when dehumidifcation is required, set the control board Dehum
Logic Menu () to "" using the push buttons or CoolCloud
HVAC phone application. If the humidistat opens on humidity or
the thermostat de-energizes this terminal when dehumidification
is required, set the Dehum Logic Menu to "" using the push
buttons or CoolCloud HVAC phone application.
Auxiliary Alarm Switch
The control is equipped with a 24VAC Aux Alarm to be used for a
condensate switch install (designated by CON-DENSATE IN/OUT
on the control). By default, the connected AUX switch is normally
closed and opens when the water level in the evaporator coil base
pan reaches an undesirable level. The control responds by display-
ing a "" error code and turning off the outdoor condensing
unit. If the AUX switch is detected to be in the closed position for
30 seconds, normal operation resumes and the error message is
no longer displayed.
7-Segment Display and Push Buttons
MAX CFM
1200
1600
2000
The air handler includes three on-board push buttons allowing
users to navigate indoor and outdoor system menus. The Right
and Left buttons allow the user to scroll through the main menus
and to then scroll through available options within specific menus.
The Center button is used to enter into a main menu and to then
permanently select options within those menus.
NOTE: After scrolling to the desired option within a menu, that
option may be flashing on the 7-segment displays. This indicates
the option has not been officially selected. Pressing the Center
button two times will select that option. The first press will stop
the flashing. The second will make the selection official and return
you to the main menu.
10
Figure 14
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Troubleshooting
