Operating Control; Maintenance - York EVHC 09 DSAAAR Operating And Maintenance Instructions Manual

by johnson controls
Cool mode
In Sleep mode and cool operation, the unit
will operate in the following
sequence: 1-2.
Phase 1 The unit will operate in cool mode
until the ambient temperature set
point is reached.
Phase 2 After reaching
temperature set point, the unit
will operate in cool mode so as
to keep the ambient temperature
within the limits of its set point, +1
to +2°C for 1 hour.
Heat mode
In Sleep mode and cool operation, the unit
will operate in the following
sequence: 1-2.
Phase 1 The unit will operate in heat mode
until the ambient temperature set
point is reached.
Phase 2 After reaching
temperature set point, the unit
will operate in cool mode so as
to keep the ambient temperature
within the limits of its set point, -1
to -2°C for 1 hour.

Operating Control

Emergency operation
The emergency switch is located in the
receiving panel at the front of the unit. This
switch is used when the batteries of the
Component
Air filter:
Unit casing:
Drain tray and pipe:
6
remote control unit have run out, or in the
case of any trouble.
phase
Operation of the system in Emergency
mode
Cool System.
The ambient temperature set point is set to
the ambient 20°C. The unit operates in the cool mode.
Heat and Cool System.
The ambient temperature set point is set
to 25°C. The unit operates in automatic
mode.
AUTO
phase
it (switching action). During this manual
emergency operation, the remote control
unit cannot be used.
Very important
the ambient
Make sure switch is set to RUN.
Automatic reset and antifreeze protection
After any power failure, the unit resets
automatically (when power supply is re-
established), remaining in the same mode
as prior to the failure.
Defrost and anti-overheating
This feature is used to avoid freezing of the
evaporating unit in cool or dry mode, as

Maintenance

1- Clean with a vacuum cleaner or tap lightly and wash
with lukewarm water (40º C) and mild detergent.
2- Rinse and dry before reinstalling on unit.
3- Do not use gasoline, alcohol or other chemical
products.
1- Remove dust from front panel with a soft rag or a rag
moistened in a mild soapy solution.
2- Do not use gasoline, alcohol or other chemical
products.
1- Clean and make sure there are no obstructions.
Pressing this switch once
connects the unit; pressing
a second time disconnects
GB
well as to avoid overheating in heat mode.
When in defrost and anti-overheating, the
compressor is inoperative, its LED flashes
in cycles and the air deflector stops in fully
open position. At the end of this cycle, the
deflector operates in accordance with the
previously programmed parameters.
Maintenance
These units are designed to operate
during long periods of time with minimum
maintenance. Nevertheless, the following
operations should be carried out regularly.
Frequency recommended
Every month, or more frequently if necessary.
Every month, or more frequently if necessary.
Every season prior to start-up.