Manual

Application
The Uponor Zone Control Module
is a printed circuit control and
diagnostic device designed for use
with Uponor Thermostats, Motorized
Valve Actuators (MVAs), Thermal
Actuators or Zone Valves. The
module provides connection to
the power supply transformer;
interconnections between the
individual thermostats and their
respective MVAs; thermal actuators
or zone valves; and the connection
between the end switches and the
pump or boiler relay. The modules
are internally fused for protection
from over current or direct shorts
from the power supply transformer.
Caution: Because the
end switch circuit is
not protected from over
current, install a 1-amp
fuse. For proper operation,
ensur
e there is a separate
transformer load on the
end switch. Do not
c
onnect the SB, R,
C terminal to the
ES terminal with the
same tr
ansformer.
Part Numbers
A3030003
(Three-zone Control Module)
(2" x 6")
A3030004
(Four-zone Control Module)
(2" x 8")
Zone Configurations
Available in both three- and
four-zone configurations
May be ganged together
Display
Light emitting diodes (LEDs)
indicat
e various functions of
control (see
Table 1).
Specifications
Power input 24VAC
End switch circuit —
dr
y c
ontact equivalent nominal
24V
A
C
, 2A maximum
For the maximum number of zones
on a transformer, see
Table 2.
Control is setback compatible.
Uponor recommends 18GA
thermostat wire size.
RADIANT HEATING
SYSTEMS
ZONE CONTROL MODULE
TECHNICAL BULLETIN
Table 1: LED Definitions
LED Definition
Green
Indicates power to the
module
Yellow
Indicates which zones
ar
e calling f
or heat
Red
Indicates which end
switches ar
e closed
and c
ompleting the
circuit for the pump
or boiler r
elay
Part No. Part Description 50VA 75VA 100VA
A3020522
MVA 6 9 12
A3070526
1" Zone Valve 6 9 12
A3010522
Thermal
Actuat
or
12 19 25
Table 2: Maximum Number of Zones on a Transformer
(Calculated to include 10% line loss)