Hybrid
Vertical
Stack
–
Installation
Operation
Maintenance
Manual
OPERATION
–IN
SUITE
R090303
Installation
Operation
Maintenance
Manual
is
subject
to
change
without
notice
Page
8
Stage
1
Heating:
Fan
operates
at
low
speed
for
10
minutes
with
minimal
noise
in
an
attempt
to
elevate
suite
temperature
to
desired
level.
Stage
2
Heating:
After
10
minutes,
if
set
‐
point
temperature
is
not
reached,
fan
will
automatically
step
up
and
operate
at
high
speed.
Cooling
Operation:
Each
heat
pump
has
a
water
cooled
refrigeration
circuit
that
operates
only
during
the
cooling
mode.
To
enable
cooling
operation,
MCO
thermostats
must
be
set
to
“Cool”
mode.
The
ACO
thermostats
should
be
set
to
“Auto”
mode.
In
order
for
the
cooling
operation
to
become
activated,
the
suite
temperature
must
rise
above
the
cool
set
‐
point
temperature.
The
thermostat
will
automatically
stop
cooling
once
the
space
temperature
drops
below
the
cool
set
‐
point
temperature.
Cooling:
The
fan
always
operates
at
high
speed
during
the
cooling
operation.
The
compressor
also
operates
during
the
cooling
operation.
Time
Delays:
‐
Thermostat
time
delay
up
to
5
minutes
upon
initial
power
up.
‐
Thermostat
time
delay
up
to
5
minutes
when
switching
between
heat/cool/off
modes.
‐
Heat
pump
time
delay
up
to
5
minutes
upon
initial
start
up.
‐
Heat
pump
time
delay
up
to
5
minutes
from
the
end
of
a
cooling
operation
to
the
start
of
the
next
cooling
operation.
Recommendations:
1.
Set
the
thermostat
fan
to
ON
for
continuous
fan
operation
while
your
suite
is
occupied.
This
will
help
to
ensure
that
the
temperature
is
uniform
throughout
the
suite.
2.
In
order
to
provide
space
conditioning
while
you
are
away,
keep
the
thermostat
system
switch
in
the
appropriate
heat
or
cool
mode.
The
heat
pump
will
not
heat
or
cool
if
the
thermostat
system
switch
is
set
to
the
“OFF”
position.
