Carrier bryant ONEBB3ZAC01, Quick Reference Manual

Page: 4 / 6

ZONEBB3Z(AC/HP)01: Quick Reference Guide
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
4
Fig. 6 – Leaving Air Temperature (LAT) Sensor
Please refer to Limit Temperature Levels and Actions Table in the
Installation and Start-Up Instructions for additional information on the
response of the system to LAT/HPT sensors.
Step 6 – Connect the Power Supply
Optional: Use a dedicated 24 VAC, 40 VA, 60 Hz isolated transformer
(not included).
Otherwise, if the cooling and heating systems have separate
transformers, twist off the Rc/Rh jumper using a pair of long nosed
pliers. Then connect the R of the cooling transformer to Rc, the R of the
heating transformer to Rh and the common of both transformers to C.
Connect a jumper wire between Rz and Rc. Rc powers G,Y, and O
outputs. Rh power W outputs.
Fig. 7 – Connecting the Power Supply
Step 7 – Wire the HVAC Equipment
The descriptions below and Table 1 will help you choose the connect
wiring diagram for your system. Table 1 also shows the proper setting of
dipswitches 9 and 10 for each diagram.
There are 8 dipswitch settings on the AC zone control and an additional
4 dipswitch on the HP zone controls board. Table 1 summarizes their
function and available settings.
Fig. 8 – Dip Switches
NOTE: ZONEBB3ZAC01 model does
not have HPT connector.
Table 1 – Dipswitch Settings
Dipswitch
Position
Operation Description Default (OFF) Optional Settings
1
Auto changeover time between heating and
cooling or vice versa
Auto changeover time
ENABLED (OFF)
Auto changeover time DISABLED
2
Together with dipswitch 3, determines
chanegover time
20 minutes auto changeover
time (OFF)
30 minutes auto changeover time (ON)
3 Multiplier for the modified time set on dipswitch 2 1.0 multiplier (OFF) 0.5 multiplier (ON)
4
Installer Test Mode used to check system
operation
Normal operation (OFF) Installer Test Mode ENABLED (ON)
5
Disables zoning operation with all dampers open
and Zone 1 thermostat as controller
Zoning Operation ENABLED
(OFF)
Zoning Operation DISABLED (ON)
6 Setting G (Fan) to energize with W W NOT energized with G (OFF) W energized with G (ON)
7
Sets Leaving air Temperature (LAT) limit
temperature (HP/2 Stage control only)
145°F
(OFF)
(OFF)
160°F
(ON) 175°F
(ON)
8
130°F
(ON)
(OFF)
9
Designated Zoning Controller connection to heat
pump (HP) or an air conditioner (AC)
1 or 2 Speed HP / 1 Stage Aux.
Heat (OFF)
1 or 2 Speed
AC / 1 or 2
Stage Heat
*
(ON)
*. For 2 stage heating, the stat may be a 2 stage heat AC stat or a HP stat converted to AC.
1 Speed HP / 1
Stage Aux
Heat
†
†. Uses an AC stat with 2 stage heating instead of a HP stat.
(OFF)
10
Designates the type of thermostat used with the
Zoning Controller (HP or AC)
(ON)
11
Disable over/under temperature protection for the
equipment in emergency situations
LAT and HPT Safety Protection
ENABLED (OFF)
LAT and HPT Safety Protection DISABLED (ON)
12
Determine the Reversing Valve is energized for
cooling (O function) or heating (B function)
Reversing Valve energized on
COOLING (OFF)
Reversing Valve energized on HEATING (ON)