How And When To Use Repeater Units - Danfoss Link CC Installation Manual

Installation Guide
3.3.

How and when to use repeater units

What is the purpose of a repeater unit ?
A repeater unit strengthens the wireless signal, when a satisfying connection
can not be etablished between the Danfoss Link™ CC and other wireless Danfoss
units.
When is a repeater unit needed ?
1. Complete the installation and perform a network test (see 4.9). If one or more
devices fail, include a repeater unit (CF-RU) in the network, between the
Danfoss Link™ CC and the device(s) that fail.
2. Alternatively, plan ahead. If "yes" is answered to one or more of the following
questions, Danfoss recommends to include a repeater unit at the beginning
of the installation (see 3.4):
• Is internal walls or deck construction between floors made of steel rein-
forced concrete?
• Is the distance between Danfoss Link™ CC and last device more than 20m
and signal must pass more than 2 heavy walls (stone or non-reinforced
concrete)?
• Is the distance between Danfoss Link™ CC and last device more than 25m
and signal must pass more than 2 light walls (gipsum/wood)?
• Is the distance more than 30m in free line of sight?
A repeater unit (CF-RU) can be ordered on Danfoss code no. 088U0230.
Note! These are guidelines only, as many factors have influence on wireless
communication.
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Danfoss Link™ CC
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