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Installation
(continued)
Zone Valve Installation
®
Up to two 24VAC solenoid
valves can be connected
to each zone output and
wired back to the Common
[COM] connector
®
With long cable lengths,
voltage drop can be
significant, especially
when more than one
coil is wired to a zone
®
As a good rule of thumb
select your cable as follows:
L
0–50m cable dia 0.5mm
L
50–100m cable dia 1.0mm
L
100–200m cable dia 1.5mm
L
200–400m cable
dia 2.0mm
®
When using multiple valves
per zone, the common wire
needs to be larger to carry
more current. In these
circumstances choose a
common cable one or two
sizes larger than required
®
When making connections
in the field, only ever use
gel filled or greased filled
connectors. Most field
failures occur due to poor
connections. The better the
connection here, and the
better the waterproof seal
the longer the system will
perform without trouble
Summary of Contents for KRC 9
Page 1: ...User Manual 5 WARRANTY ...
