ON—Normal single system (address = 01).
OFF—Address selection for second zoning system.
Switch 6—Select installer test mode to assist in checking out the
system. See Starting System.
ON—Selects normal operation.
OFF—Selects installer test mode.
Switch 7—Enables or prevents cooling when outdoor temperature
is below the value selected by software Configuration Option 6. To
limit low temperature cooling, first set this switch to OFF and then
select 55, 50, or 45 degrees farenheit with Configuration Option 6.
Requires outdoor air temperature sensor.
ON—Cooling enabled at all temperatures.
OFF—Low temperature cooling disabled.
Switch 8—Dual fuel selection for systems with heat pump and
furnace.
ON—Selects normal system.
OFF—Selects dual fuel system.
All dual fuel installations must be equipped with a high
pressure switch to turn off the compressor under a high indoor
coil pressure situation.
The high pressure switch protects compressor and indoor coil
from overpressure which would occur if a failure or wiring
error resulted in the heat pump and furnace operating at the
same time.
Also, an outdoor temperature sensor must always be included
in dual fuel installations. If not, an E3 error message will
appear. See Error Messages in the Troubleshooting section.
Step 2—User Interface Configuration
The User Interface is configured via a group of selections made
through the keypad in a special configuration mode. Before the
equipment is operated, the system must be properly configured.
Make sure this step is not left out.
Before turning power on to the zoning system, disable the system
equipment itself by either turning off its main power or by
temporarily disconnecting its 24-vac power at the RC and RH
terminals of the Equipment Controller. This will allow the zoning
system only to operate. Go through the following steps with the
equipment power off.
By this time 8 DIP switches on the Equipment Controller should
be properly set.
Turn on power to the zoning system by applying power to its
24-vac transformer. When power is first applied to Comfort Zone
II -B the Equipment Controller immediately begins positioning all
dampers to fully open by running each damper motor in the open
direction for 15 sec. This is done in succession, 2 zones at a time,
starting with Zone 1. The time required will be 15 sec for each pair
of zones. Remember that the system automatically determines the
number of zones by detecting the presence of zone sensors.
At power up the User Interface displays all segments for a few sec.
This is followed by the selected system type for an additional few
sec. The system type shows as follows:
1. AC—1-Speed Air Conditioner
2. HP—1-Speed Heat Pump
3. A2—2-Speed Air Conditioner
4. H2—2-Speed Heat Pump
5. HS—1 or 2-Speed Heat Pump with 3-Stage Auxiliary Heat
6. dF—Dual Fuel with 1-Speed Heat Pump
7. d2—Dual Fuel with 2-Speed Heat Pump
Power-on check of the User Interface itself can be done by
separating the User Interface from its backplate and then recon-
necting it by attaching the 2 parts. This will allow observation of
the User Interface at power up.
Several installer select options are set using the User Interface
keypad.
These configuration options, like DIP switch settings, are intended
to be selected at installation and are normally not modified by
home or business owner. These options are not discussed in the
Owner’s Guide and therefore must be made as part of the
installation. A special procedure allows entry into configuration
mode. Comfort Zone II -B will automatically exit this mode if no
button is pressed for 3 minutes. While in the configuration mode,
configuration choices can be made. In addition, LAT and HPT
temperatures as well as all damper positions can be viewed. A brief
description of each is given below, followed by instructions on
how to make the selection.
Not all option numbers are used in this product. Options will only
appear on the User Interface if they are used in the particular
application, i.e., auxiliary heat lockout temperatures will appear
with heat pump selections, but not with AC/furnace selections.
Option numbers between 1 and 29 are common to all wall mounted
controls. Option numbers 30 and above are unique to zoning
systems.
TO ENTER THE CONFIGURATION MODE:
Press and hold FAN button for approximately 10 sec until room
temperature and set point displays change to 2 numbers. You are
now in the configuration mode.
CONFIGURATION OPTIONS:
Option 2—Clean filter timer
Option 3—Fahrenheit or Celsius
Option 4—Fan (G) ON with W
Option 5—Variable speed ICM motor
Option 6—Low ambient cooling lockout temperature
Option 7—Variable speed superdehumidification
Option 8—Auxiliary heat lockout Temperature
Option 11—Dual fuel crossover temperature
Option 12—Defrost heat selection
Option 13—Zone temperature offset adjustment
Option 14—Heat/cool dead band adjustment
Fig. 12—DIP Switch Settings
A98183
NORM
NORM
NORM
NORM
SMART
RECOVERY
1 SPD
AC
ON
(CLOSED)
NORM
DISABLE LOW
TEMP COOLING
INSTALLER TEST MODE
ADDRESS 11
3 STG HEAT
NORM
2 SPD
HP
OFF
(OPEN)
DUAL FUEL
7
6
5
3
4
2
1
8
Switch factory
default is closed.
NOTE:
9
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