Startup - Econar GeoSource Invision 3 Q Series Installation And Operating Instructions Manual

stage
call from
the
thermostat. Moving Dip Switch #3 to
the
OFF position
can reverse the
priority.
This is
normally not required
since
the
short
DHW runtimes
normally go unnoticed.
4.
Disabling the DHW Heating System
Moving Dip Switch #4 to
the
OFF
position
will
stop the
DHW
pump
from
sampling the tank water temperature
and keep the compressor
off
in
the
DHW
mode. Units are
shipped
from
the
factory with
this switch
in
the
off
position
because
units may
be
installed
and
required to
heat
or cool before
the
DHW plumbing
is completed.
5.
DHW Temperature
Lol[Ii
Jumper
The DHW
Lo/Hi
Jumper located
on the
controller gives
the homeowner the option
of
selecting the
temperature
output of
the
domestic hot water being produced by
the
GeoSource
lnvisionr.
This
jumper
is
sent
from
the
factory in
the
low
position. If
the temperature
of
the
water that is produced
needs to
be
hotter,
the
jumper
may
be switched to the
high position.
9Caution:
Only
move this
jumper
after testing the
temperature of the
water.
If
the
jumper
is moved before
the
water temperature
has been
found to
be
insufficient,
the water may be too hot
for comfort,
and
may
cause
burns to the user.
If
the
jumper
is
positioned in
the
high setting, the
DHW
ckcuit will
have greater run times in order to
heat the
water to
a
higher temperature. This
will
cause the
unit to
have lowered
efficiencies. Also,
the
longer run times may
be
noticed
in
colder weather, when
the second stage
of
forced air heating is calling.
6.
Economy/Comfort Mode
Dip
Switch #2 on
the
controller is
used as an
Economy/Comfort Mode
switch.
When this
switch is
placed in
the
ON position
(factory preset),
the heat
pump
is in Economy
mode.
The blower
will
operate at the
low
speed
fan setting with
a
call from
G on the thermostat.
With
a
Yl
call,
the
blower output
will
be the
medium
speed
fan setting. With
a
Y2
call, the
blower
will
output
the
high
speed
fan setting.
When
Dip
Switch #2 is
placed
in
the
OFF position,
the
heat
pump is in Comfort mode. This
setting
acts as a
permanent humidistat when
the
unit is in
the
cooling
mode.
The
blower
will
output
the
low
speed
fan setting
with
either
a
G or
a
Y1 call from
the
thermostat. With
a
Y2
call,
the
blower
will
output the medium
speed
fan
setting. When this
switch is set to the Comfort
mode, the
low
speed
fan
tap
on
the
controller
should
be
moved to
the tap
indicated
on
fan
speed selection table
in
the
electrical diagrams (Figures 7
and 8).
IX.
STARTUP
Before applying power to
the heat
pump, check
the
following items:
-
Water supply
plumbing
to the heat
pump is
completed and
operating. Manually
open the water
valve on well
systems
to
check
flow.
Make
sure
all
valves are open and air has been
purged
from
a
closed loop system. Never operate the system
without correct water
flow.
-
All
construction dust
has been cleaned
up
and
all
sheet-rocking is
completed. Construction
dust,
especially sheet-rock dust,
can
plug
the
at
coil
and
block
airflow.
Make
sure the
filter
is
clean
before
starting
the
unit.
-
Low voltage
wiring of
the thermostat
and any
additional
control wiring
is
complete.
Set
thermostat
to the
"OFF" position.
-
All
high voltage
wirilg
is correct including
fuses,
breakers, and
wire
sizes.
-
The heat
pump
is located
in
a
warm area
(above
45oD.
Starting
the system
with low
ambient
temperature conditions is more
difficult;
do
not
leave
until
the
space
is brought up to operating
temperatures.
-
The
DHW
water
piping
is completed and purged.
-
DHW
water temperatures are warm enough (50nF
or
above) to start
in
the heating mode.
Low
water
temperature starting may require
flow
reduction until
the system
is
up
lo operating temperature.
You may now apply power to
the
unit.
A 4 minute
35
second
delay
on
power
up
is programmed into
the heat
pump before
the compressor
will
operate. During
this
time you
can
verify airflow with
the
following
procedure:
-
Place the
thermostat in the
"FAN
OI\f'position.
The
blower should
start
immediately.
Check
airflow
at
the
registers to make
sure that they
are open and
that
air is being distributed throughout the house. When
airflow
has been
checked, move
the
thermostat to
the
"FAN ALrtO" position.
The
blower
should
stop.
The
following
steps
will
assure
that
your
system is
heating
and
cooling
properly.
After
the
initial power
up
period
is
completed,
the
red indicator light
on the
internal
controller
will
shut
off.
The heat
pump is now ready for
operation.
-
With
the thermostat
in
the
"HEAT"
mode, turn the
thermostat up to its highest temperature
setting. The
compressor should start,
with
the
blower
starting
a
few
seconds
later.
The thermostat may
cause its own
compressor delay
at
this time but
the
compressor
will
start
after all
delays.
-
After running
the
unit for
5 minutes, check
the airside
return
and
supply temperatures.
An
air temperature
rise
of
20nF
to
30oF
is normal in
the
heating
mode,
but variations in water temperature
and water
flow
rate can cause
variations outside
the
normal
range.
-
Turn
the thermostat to the
"OFF"
mode.
The
t4