Water Furnace IntelliZone Installation Manual - Dip Switch Setup (Cont.)
14
INTELLIZONE INSTALLATION MANUAL
Selecting Zone Priority and Percentages
Selecting the zone percentage should be accomplished by using the Zone Calc Software. This percentage is an approxi-
mation of the maximum heating and cooling load of the zone. The IntelliZone allows 0, 25, 45 and 70% selections. Below
are some general rules to follow when selecting percentages:
Pick a larger percentage for major living areas such as family rooms, etc.
•
Pick a smaller percentage for minor living areas such as dens or bedrooms.
•
Pick a larger percentage if more branches are required than the load indicates due to large area per load (unfinished
•
basement).
The total should always add up to over 100%.
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Settings DIP Switch 6 (SW6)
An 8-position DIP switch package on the IntelliZone control allows the following field selectable options:
1 - Service Test Mode
This DIP switch allows field selection of “Normal” or “Test” operational modes
(Test=OFF / Normal Speed=ON). The test
mode accelerates most timing functions, including the damper timing, 16 times to allow faster troubleshooting.
Note: Three-wire dampers will not have enough time to open in test position.
2 - Central Zone Mode
This DIP switch allows field selection of “Central” or “Multi-zone” operational modes
(Central Zone=OFF /
Multizone=ON). The central mode opens all dampers and operates the control as a central zone using the zone 1 (main)
thermostat inputs. This mode, which operates like a system without zone control, allows simplified operation during testing
or during emergencies. In multi-zone mode, the control allows each active zone to be controlled by its respective thermostat
inputs.
3 - No RPM/RPM Mode
This DIP switch configures the control to monitor the RPM output of the ECM2 blower motor
(No RPM=OFF / RPM=ON).
When using a PSC blower motor, the control should be configured for “No RPM” sensing.
4 - Dehumidification Mode
This DIP switch allows field selection of “Dehumid” or “Normal” operational modes. The “Dehumid” mode uses the logic
of reduced cooling fan speeds 1 and 2 for stage one compressor (Y1 on single-speed), and fan speed 3 and 4 for dual-ca-
pacity compressor (Y2 on single-speed). The “Normal” mode uses the logic of normal cooling fan speeds 2 and 3 for stage
one compressor (Y1 on single-speed), and fan speeds 4 and 5 for stage two compressor (Y2 on single-speed).
5 - Dual capacity/Single-Speed
This DIP switch configures the control for single-speed or dual capacity unit operation
(Single-Speed=OFF / Dual Ca-
pacity =ON). Single-speed units are limited to two zones. Dual capacity units can operate up to four zones.
6 & 7 - Staging Options
Normal - This “as shipped” mode will upstage the blower and compressor normally.
Quicker - This mode will upstage the blower, compressor and auxiliary electric heat more expediently than “normal”
mode for increased comfort.
Faster - When heating, this mode will upstage the blower and auxiliary electric heat slightly faster than “quicker” mode.
Cooling operation same as “quicker” mode.
Faster with Timer - This mode allows for a timed element in compressor and electric heat upstaging in 45% and 70%
zones for situations in which normal staging is inadequate when heating.
This staging position should be reserved for
the most demanding and aggressive situations. Cooling operation remains the same as “quicker” mode.
Example 1: The heat pump is already operating in first stage. Second stage will be activated after a 15-minute continu-
ous Y3 zone call from a 45% or 70% zone until the zone call is reduced to a Y2. Airflow will be increased to speed tap 3 or 4
during this period.
Example 2: The heat pump is already operating in second stage. Third stage will be activated after a 15-minute Y3
zone call from a 45% or 70% zone until the zone call is reduced to a Y2. Airflow will be increased to speed tap 5 during this
period.