Hybrid
Vertical
Stack
–
Installation
Operation
Maintenance
Manual
MAINTENANCE
R090303
Installation
Operation
Maintenance
Manual
is
subject
to
change
without
notice
Page
19
WARNING:
To
prevent
injury
or
death
due
to
electrical
shock
or
contact
with
moving
parts,
disconnect
the
power
to
unit
before
servicing.
Inspect
Filters:
Establish
a
regular
maintenance
schedule.
Clean
filters
frequently
and
replace
as
required.
A
vacuum
can
be
used
to
clean
filters,
as
well
as
the
surface
of
coil
components.
To
remove
the
filter
from
the
unit,
remove
the
front
service
entrance
and
slide
out
the
filter
component.
Check
Fan
Motors
Annually:
Make
sure
to
inspect
fan
motors
for
unusual
signs
of
wear.
All
CGC
hybrid
heat
pump
fan
motors
are
permanently
lubricated
when
shipped
from
the
factory.
Do
not
oil
the
fan
motors.
Amperage
Check
on
Compressor
and
Fan
Motor:
Current
draw
on
this
equipment
should
not
exceed
normal
full
load
or
rated
load
amps
by
more
than
10
percent
of
the
values
noted
on
the
unit
nameplate.
Safety
Control
Reset:
All
CGC
hybrid
heat
pumps
include
high
and
low
pressure
switches
to
prevent
the
machine
from
operating
under
abnormal
conditions
of
temperature
or
water
flow.
If
multiple
pressure
alarms
occur
in
24
hours,
the
compressor
operation
will
be
permanently
locked
out
until
the
unit
is
reset,
or
power
is
disconnected
for
20
seconds.
NOTE:
If
the
heat
pump
must
be
reset
more
than
twice,
check
the
unit
for
a
dirty
air
filter,
abnormal
entering
water
temperature,
inadequate
water
flow
(delta
T
method),
or
internal
malfunctions
that
may
be
causing
high
or
low
pressure
conditions.
If
the
unit
continues
to
alarm,
contact
a
trained
service
technician
and
ensure
the
problems
are
resolved
before
re
‐
setting
the
unit
again.
Drain
Pan
and
Condensate
Hose:
Make
sure
to
inspect
and
clean
if
necessary,
the
condensate
hose
and
drain
pan
on
a
regular
basis.
