bryant ZONEBB3ZAC01 3-Zone Control System User Guide

bryant ZONEBB3ZAC01 3-Zone Control System User Guide

Introduction

The Bryant 3-Zone Control system brings the possibility of total comfort control to the occupants by providing the right amount of heating or cooling for up to 3 distinct spaces or zones within a home or business.
Each zone has independent temperature settings controlled by a conventional thermostat or Wi-Fi® based thermostats and up to 5 dampers per zone.
The Quick Reference Guide will provide a simplified description on installing the 3-Zone Control System. Please reference the Installation and Start-Up Instructions included in the 3-Zone Controller packaging for the complete design and installation information on the 3-Zone System.

Product Features and Benefits

• Duct Temperature Optimizer – Offers maximum equipment protection to help ensure long life.
• Wi-Fi® Thermostat compatibility – Matches the right thermostat to the homeowner’s comfort and lifestyle.
• Diagnostic LEDs – Intelligent system diagnostics to let homeowners know if there is a problem with their system.
• Emergency Heat Switch – Allows manual override for emergency heat strip operation when utilizing a heat pump.
• Max Cycle Rate – Allows 4 equipment cycles per hr (cph) providing maximum equipment protection.
• Selection Jumpers – Designed for easy configuration
• Additional Options
  • Timeguard override
  • Compressor protection
  • Modulating damper control in emergency situations
  • Damper fuse protection
  • High and low temperature limits
  • Auto changeover from any zone
  • RH and RC for voltage isolation
  • Bypass setup routine
  • Staging time for energy savings
  • Automatic checkout with installer mode
  • Override zoning switch
  • Timer override for serviceability

Components Needed

3-Zone Control Panel

• Separate transformer is not needed to provide power
• Designed so that wires can enter from behind, above, or below
• Each system controller also includes a duct temperature sensor 24v or Wi-Fi® Thermostats
• Advanced energy savings algorithms
• Remote access
  TSTWHA01 Côr 7C Thermostat

T6-WEM01-A Côr Thermostat

Dampers (8-in. – 24-in.)

• Up to five dampers may be used in each zone by electrically connecting them in parallel

• By-pass damper available to prevent static pressure buildup

• Fig. 1 – Damper Types

  • Rectangular Damper A05252
    

  • Round Damper A05251
    

  • By-Pass

  • Leaving Air Temperature (LAT) Sensor
    

  • Slip-In Damper
    

Component Location and Wiring Considerations

Locating Bryant 3-Zone System
All wiring is connected back to the Bryant 3-Zone System. Select a location near the furnace or fan coil where wiring from each thermostat, each damper actuator, and the equipment itself can come together easily.
The Bryant 3-Zone System is approved for indoor use only and should never be installed with any of its components exposed to the elements. It may be installed in any area where the temperature remains between 32° and 158°F, and there is no condensation. The cover must be installed to prevent damage from other sources. Do not locate where it will be accessible to children. Remember that wiring access is likely the most important consideration.

WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death.
Turn off unit before routing control wiring or any service operation.
Remember, there may be more than one power supply to unit.

CAUTION
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage.
To prevent possible damage to Bryant 3-Zone System, do not mount control on plenum, duct work, or flush against furnace.

Wiring Considerations

• All wiring in the Bryant 3-Zone system may be unshielded

• Ordinary thermostat wire is ideal

• Use 22 gage or larger for normal wiring

• Lengths over 100 ft should use 20 gage or larger wire

• Each damper actuator required 3 conductors

• The connection to thermostat and equipment (furnace or fan coil) could require as many as 8 conductors for a multi-state installation

• The Leaving Air Temperature (LAT) and Heat Pump Temperature
  (HPT)-(used with heat pumps only) sensors require 2 conductors each

• Cables with excess conductors are acceptable

MOUNTING

Step 1 – Mounting the Bryant 3-Zone System
The Bryant 3-Zone System can be mounted in either vertical or horizontal position near the HVAC system inside the home. It is designed so that wires can enter it from behind, above, or below. Plan wire routing before mounting.
Fig. 2 – Mounting the System

1. Remove the front cover from the base and use the base as a template to mark drilling locations on the wall, stud , or roof truss.
2. Mount using 4 screws (and wall anchors) provided. (See Fig. 2.)
3. Level for appearance and tighten screws.

INSTALLATION INSTRUCTIONS

Step 2 – Install Thermostats in each desired Zone

Location

1. Install each thermostat according to the manufacturer’s instructions in their designated Zone location.
2. Connect the thermostats wires to their respective Zone designation on the right side of the the 3-Zone Panels. (See Fig. 3).

Step 3 – Install Zone Dampers

Each damper has 3 connections: Close (CLS), Open (OPN), and
Common (COM). Find the connection points along the lower left side of the 3-Zone Control. Suggested colors are CLS = RED; OPN = GREEN, COM = WHITE. Field label and make the connections at the dampers and at the 3-Zone Control. Be careful not to cross zone numbers.
If duct work required multiple dampers for a single zone, up to 5 dampers may be wired in parallel and may be installed in any position.

Fig. 3 – Wiring Diagram for Installation of Thermostats

Zone 1 Thermostate Wiring Example

Zone 2

Fig. 4 – Installing Dampers

Step 4 – Install Barometric Bypass Damper
The barometric bypass damper is a critical part of Bryant 3-Zone System for controlling noise at minimum airflow. A barometric bypass should be installed unless the duct work and indoor unit have been sized for use without a bypass. When a direct bypass (outlet air fed back directly into the return) is used, bypassing decreases entering air temperature in cooling and increases it in heating. Excessive bypassing will lead to limit trips, either through the LAT/HPT sensor or the equipment internal limits.

Step 5 – Install Leaving Air Temperature (LAT) Sensor / Heat Pump Temperature (HPT) Sensor (optional)
The Leaving Air Temperature (LAT) sensor is used to detect a cooling overload condition and is connected to the LAT and LATC terminals.
Polarity does not matter. Locate LAT sensor in main supply trunk after heating and cooling coil and before bypass damper and first branch.
Cycling on internal equipment limits is to be avoided because it over stresses and can shorten the life of the equipment. The LAT limit setting should be selected to trip below the equipment limit.

**Fig. 5 – Leaving Air Temperature (LAT) Sensor / Heat Pump Temperature (TPT) Sensor optional

**

The HPT sensor is used with ZONEBB3ZHP01 to detect a cooling overload condition and is connected to the HPT and HPTC terminals. The HPT sensor will also be monitored in heating to detect a heating overload condition at the coil with a shutdown temperature of 115°F. It can be installed through the wall of the fan coil or may be located entirely inside the fan coil near the blower inlet being careful that it does not interfere with the blower wheel. If the HPT sensor is not used, the 10K ohm resistor attached to the 2 HPT terminals on the board must be left in place.

NOTE: ZONEBB3ZAC01 model does not have HPT connector.
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.

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)| 1 Speed HP / 1
  Stage Aux
  Heatt| (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 (0 function) or heating (B function)| Reversing Valve energized on
  COOLING (OFF)| Reversing Valve energized on HEATING (ON)

**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. 9 – AC 3-Zone Control, AC Stat, 1-Stg. AC with 1-Stg. Heat
  
  

• Fig. 10 – HP/2S 3-Zone Control, HP Stat, 1-Stg. HP with 1-Stg. Aux.
  

• Fig. 11 – HP/2S 3-Zone Control, AC Stat, 2-Spd AC with 1-or 2-Stg. Heat
  

• Fig. 12 – HP/2S 3-Zone Control, AC Stat, 1-Stg. AC with 1- or 2-Stg.
  

• Fig. 13 – HP/2S 3-Zone Control, AC Stag, 1-Stg. HP with 1-Stg. Aux.

• 

• Fig. 14 – HP/2S 3-Zone Control, HP Stat, 2-Spd HP with 1-Stg. Aux Heat
  

Training

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Access My Learning Center with your HVACpartners credentials at www.mlctraining.com. Please contact us a mylearning@carrier.com with questions.

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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