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English (US)
5. Product introduction
5.1 Features and benefits
•
Compatible with 2-, 3-, and 4-wire low
voltage controllers or thermostats.
•
Wiring ease with 120 VAC, ground and low
voltage screw terminal inputs.
•
Low voltage end-switch output terminals for
the zone valves.
•
Replaceable 40 VA transformer (snap-fit) for
the zone valve controllers only.
•
Zone priority with selectable time-out
feature.
•
Pump exercise feature, selectable 72 hours
or 14 days.
– The pumps will be turned on for 30
seconds every 72 hours or 14 days in
order to prevent pumps from seizing up.
This feature will only work if there is a
jumper wire connecting the ZR ZC
terminals on the pump controller.
•
Boiler demand terminals.
– The two terminals, labeled MAIN XX, are
wired to the boiler. When the contacts
close, the boiler starts and will come up to
a preset temperature for hydronic heating.
•
DHW terminal.
– The two terminals, labeled PRIORITY XX,
are wired to the boiler. When the contacts
close, the boiler starts and will come up to
a preset temperature for domestic hot
water heating.
•
Front facing LED indicator lights on the
cover.
•
Side-mounted terminal connections for ease
of wiring and installation.
5.2 Identification
5.2.1 Part numbers
5.2.2 Production code
The production code represents the date of
manufacture. You find the production code on
the circuit board and the carton label.
Example:
PC 1542 = year 2015, week 42.
Fig. 5
Locating production code
Model
Description
Part number
UPZCV-3
Three-valve zone
control
98863567
UPZCV-4
Four-valve zone
control
98863568
UPZCV-6
Six-valve zone
control
98863570
Production code
YYWW
PC1542
1542
Circuit board
Carton label
