Zoning; Introduction; Zoning Requirements; Operation - Trane TZON1050 Installation Manual

Installation Guide
8.

Zoning

8.1

Introduction

The 1050 Control is zoning capable with the ability to control
single stage, multi stage and variable speed equipment.
The 1050 integrates modulating damper control within
system operation without jeopardizing system reliability.
The 1050 Control manages excess air by relieving excess
air flow into non-calling zones eliminating the need for a
bypass damper or position stops in the supply dampers
**For optimum performance and comfort, the number
of zones should be limited based on the type of system
installed.
RECOMMENDED MAXIMUM NUMBER OF ZONES
BASED ON SYSTEM TYPE
OUTDOOR COMPRESSOR
UNIT TYPE STAGES
None
1
CLG/HP 2
Variable
1
CLG/HP 2
Variable
1
2
CLG/HP
Variable
Variable
1
CLG/HP 2
Variable
1
CLG/HP
2
For additional detailed technical zoning information, please
refer to Application Guide CNT-APG003-EN.
8.2

Zoning requirements

• 1050 Control
• One Zone Panel is required for up to 4 zones, an
optional Zone Expander is needed if more than 4
zones are installed
• Either a communicating or non-communicating zone
sensor for each zone
18-HD80D1-6E-EN
HEATING HEATING MAXIMUM
TYPE STAGES
Gas heat 2
Gas heat Modulating
Electric
All Stages
heat
Oil heat 1
Hot water
None
Electric All Stages
2
Modulating
Natural/LP
2
Modulating
Hot Water
1
Oil
1
• Power open/power closed fully modulating dampers
with a damper travel time between 15 – 60 seconds...60
seconds is the default setting
• Trane or American Standard manufactured indoor unit
with a variable speed blower (branded Geothermal
package units and oil furnaces are not supported)
• Field supplied 24-volt transformer (transformer should
be sized to accommodate all loads connected to Zone
Panel)
• Relay Panel would be required if non-communicating
HVAC equipment is installed
8.3

Operation

When zoning is applied, load value still controls system
operation but now each zone will report its own load value.
With zoning each zone will report its own operating
parameters:
ZONES
OPERATING
4
PARAMETER
6
Requested System
4
Mode
3
Zone Load Value
8
Zone Size
4
4
8
Voting Status
4
4
4
Fan Request
4
6
4
The 1050 Control uses the parameters above to determine:
4

8.3.1 Mode of operation

8
3 The mode of operation for zoned systems is determined by
the following:
3
1. Sum the weighted load value (zone size x zone LV) of
all active voting zones (zones with LV > 0) in the same
mode of operation
2. The higher of the summed weighted LV's would
determine the current mode of operation
3. Once operating in any mode, there's a 15 minute time
requirement before allowing a mode change
DESCRIPTION
Heating/Cooling/Off
Capacity required to reach each zone's
requested set point
Percentage of total system air flow each zone
can handle
1. Voting zones determine the System
Mode and voting zones can request
system operation
2. Non-voting zones are only active when
a voting zone has requested system
operation
1. Each zone has fan mode option of On
or Auto
2. System fan mode determined by last
selected zone fan mode
3. When the Fan Mode selected is ON and
the system is currently not delivering
capacity, all zones dampers are
positioned full open
XL 1050
23