RADIANT HEATING SYSTEMS
ZONE CONTROL
MODULE
INSTRUCTION SHEET
Table 2: Maximum Number of Zones on a Transformer
Part No. Part Description 50VA 75VA 100VA
A3020522
Motorized Valve Actuator 6 9 12
A3070526 1" Zone Valve
6912
A3010522 Thermal Actuator
12 19 25
Table 3: LED Definitions
Introduction
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 the following.
• A connection to the power supply
transformer
• Interconnections between the
individual thermostats and their
respective MVAs, thermal actuators
or zone valves
• 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. The end-switch circuit
is also protected from over current
and a 2 amp fuse is factory installed.
Note: Because the E/S terminals are
completely isolated, the modules
no longer require separate
transformers on R and C and
E/S terminals. Pay careful
attention to transformer sizing
if using only one transformer.
Table 1: Product Descriptions
Part No. Part Description Width Height
A3030003 Three-zone Control Module
6" 2"
A3030004 Four-zone Control Module
8" 2"
Specifications
Power Input 24VAC
End-switch Circuit Dry contact equivalent nominal
24VAC, 2A maximum
Recommended Thermostat
Wire Size 18GA
Zone Configurations
The Uponor
Zone Control Modules
are available in both three- and four-
zone configurations. Boards can be
ganged t
ogether to expand the
number of zones.
Note: The new Zone Control
Modules are note able to be
ganged with older modules.
The new modules have a black
tint base; the old modules
have a gr
een tint base.
Display
Light
-emitting diodes (LEDs) indicate
various functions of control. Refer to
Table 3 for LED definitions.
Connecting Instructions
Refer to the following instructions
to properly connect the module.
1. Connect modules in series via a
module jumper (provided).
2. Fasten the jumper within the input and
output blocks of the corresponding
modules (see
Figure 1 on page 2).
LED Definition
Green Module has power
Yellow Shows which zones are calling for heat
Red Indicates which end switches are closed and
c
ompleting the cir
cuit f
or the pump or boiler r
elay
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