User's Manual

Zoning System Design Manual

70-2321—03 4

Plan the Zones

Panel

• To Operate Dampers and

Equipment

• Transformer to power panel

Thermostats

• Programmable or

Non Programmable

Dampers

• Round/Rectangular

Bypass and Discharge Air

Temperature Sensor:

• To Prevent Static Pressure

Buildup

• DATS protects Equipment

In planning a zone system, here's what you need:

Divide the Home Into Zones

There are a number of ways to divide a house into zones: by floor, in groups of rooms adjacent to each

other, rooms grouped by compass orientation—here is a typical setup:

Zone 1: areas primarily used at night (bedrooms)

Zone 2: areas primarily used during the day (living room, kitchen)

Zone 3: a third space that would benefit from its own HVAC control, such as a master bedroom suite,

a basement, living space above a garage, a home office, etc.

A good rule of thumb is to make no zone smaller than about 25% of total system capacity, measured in

cubic feet/minute (CFM).

M28111

Fig. 3. Typical residential layout with multiple zones on one HVAC system.

Zone 1: Daytime

Zone 2: Night-time

Zone 1: Daytime

Zone 2: Night-time

Zone 3:

Home

office

Zone 3:

Home

office