A. Filter
The
GeoSource 2000 heat
pump
is equipped with a
disposable air filter. This filter
should
normally
be
replaced
once a month
during
normal
usage.
During
extreme
usage or if system
performance
has decreased,
the filter should
be replaced more
often.
A dirty filter will
reduce the airflow to
the system.
This
decrease in airflow will reduce
the efficiency and comfort
level of the
system. In the heating mode, reduced airflow
may increase
the cost of
operation and,
in
extreme cases,
cause system lockout due to high refrigerant
pressures.
In
the cooling mode, reduced
airflow may reduce cooling
capacity
and
in
extreme cases ice the aircoil over, causing
system shutdown
due to low refrigerant
pressures.
If another filter is used in
place
of the
factory
specified
filter, it should
also be cleaned or
replaced in
a timely
manner. Be careful in selecting
optional
filters
so
that
excessive external resistance to airflow is not induced.
B. Lockout
Lights
A lockout light on the thermostat will light to indicate
major system
problems.
If lockout occurs, follow the
procedure
below:
1) Check for
a clean
filter
and correct
water supply from
the earth loop or well water system.
2) Reset the
system by disconnecting
power
at the
circuit breaker for one minute, and then reapplying
power.
3) If shutdown reoccurs, check the indicator lights on
the controller in the unit and review the
lockout
froubleshooting
guide
in section
XII
of this
manual.
4) If lockouts
persist,
call
your
ECONAR dealer. Do
not continuously reset the lockout condition or
damage may occur.
C. Preseason Inspection
Before each season, the air coil, drain
pan,
and condensate
drain should be inspected and cleaned as follows:
- Turn offcircuit
breakers.
- Remove
access
panels.
-
Clean air coil by vacuuming
it v/ith
a soft-brush
attachment.
- Remove
any foreign matter from the drain
pan.
- Flush
pan
and
drain tube
with
clear
water.
-
Replace
access
panels
and return
power
to the unit.
XI. THERMOSTAT
OPERATION
This
section covers basic operation of the standard 2-heat
l-cool thermostat
that
ECONAR
carries. This thermostat
is ECONAR
part
number
7O-2OO2, Honeywell
part
number T8511G.
If
your
thermostat is a different
style,
please
refer to the instructions
supplied
with
that
thermostat.
The
settings of the thermostat are conffolled with the
"System",
"'r**
,'c1"
,
up
key,
and down
key
buttons. The
System and
Fan
buttons are
located
behind the flip-down
panel.
By
pressing
the
"System"
button,
you
can control the
mode
that the thermostat operates
in. The five
system
settings are:
1. Em. Heat
-
Conffols backup
heating. In
this
mode,
the heat
pump's
compressor
is locked
out, and only
the
backup
heating
elements
(if
installed)
operate.
2. Heat
-
Controls normal heating operation.
3. Off-
Both heating
and cooling
are off.
4.
Cool
-
Controls normal cooling operation.
5. Auto
-
The thermostat automatically changes
between
heating
and cooling operation,
depending
on the
indoor
temperature.
Note: When the thermostat
is
set to
Auto,
there
must be
at
least
a
2T
difference
between the Heating setpoint
temperature and the Cooling setpoint temperature.
Ths
"Fan"
button controls the operation of the heat
pump's
blower. The Fan button has two settings:
1.
On
-
The
blower operates continuously.
2. Auto
-
The blower operates with either a
heating
or
cooling call.
By
pressing
the'f', or information, key,
you
can cycle
through
your
temperature setpoints. If
you
wish to
change a temperature setting,
press
either the up key or
down key when the appropriate mode is displayed.
For
example,
you
wish to change the heating setpoht
from
68T to 70oF. Push the
"i"
key until the heating setpoint
appears on the LCD display. Then,
press
the up key until
the desired setpoint
is
reached.
The
thermostat
will
automatically switch
back to the room temperature
display
after
a
few seconds.
If
the
LED
on
the bottom of the thermostat is lit,
your
heatpunrp has locked itselfout to
protect
itself. Ifthis
occurs,
please
see the Compressor Lockout section of this
manual.
If
you
have additional
questions
about
your
thermostat,
please
see the
installation manual
that
was
sent
with the
thermostat.
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