15
Up Push-Button
FIG. 30
ON/OFF Switch
Mode Push-Button
Fan Push-Button
Down Push-Button
Zone Push-Button
620515, 620525, 620526, 630515 & 630516 Installation Instructions
c.
When a dip switch is turned on or off after initial
configuration, a system reset will need to be
done before the Comfort Control Center
TM
will
recognize the updated selection.
3.
System Checkout
We recommend that power be supplied to the air
conditioner and check for proper operation. Verify that all
features of the installed system work. See Comfort
Control Center™ Operating Instructions. Check fan
speeds, cooling mode, heat pump mode, furnace (if
connected) and heat strip. If the features do not work,
check all wiring and confirm that the correct options have
been selected on the Electronic Control Board.
MO
DE
MODE
FAN
FAN
UP
UP
DO
WN
DOWN
OFF
ON
OFF
ON
ZO
NE
ZONE
TEM
P
TEMP
e.
Differential - differential is the temperature differ-
ence between the "ON/OFF" cycle of the ther-
mostat. The normal differential is preset in the
circuit board with the dip switch set to the "OFF"
position. In some situations, it may be neces-
sary to decrease the Differential. The location of
the thermostat may create a condition where
the normal Differential will not maintain your
comfort zone. If this occurs, the Differential can
be shortened by placing the Differential dip
switch in the "ON" position.
Note: Setting the Differential dip switch should only be
required when the installation conditions are less than
desirable and is not covered under the limited warranty.
f.
STAGE is not used on these units. Leave in the
"OFF" position.
g.
Gen start selection - leave in the "OFF" position.
h.
Replace the unit electrical box cover.
i.
Replace the shroud.
j.
Repeat this procedure for each additional zone.
2.
System Reset
After setting the dip switches in the electric box, do a
system reset. See FIG. 30.
a.
Turn the ON/OFF switch to the "OFF" position.
b.
Simultaneously Depress and hold the MODE
and ZONE push-buttons while turning the ON/
OFF switch to "ON". FF should appear in the
LCD display until the MODE and ZONE push-
buttons are released.
b.
Heat Strip selection - For units with a heat strip
installed at the factory (Model 620515), the #1
dip switch will be in the "ON" position. All other
models will have the dip switches in the "OFF"
position.
c.
Heat pump models (630515 or 630516) must
have the red plug of the outdoor ambient sensor
plugged into the RED (P3) plug.
d.
Furnace selection - when a furnace has been
connected to a zone, place the furnace dip
switch "ON" for that zone.
