Zehnder Rittling Centair CMEV.4e, Руководство по установке

Страница: 7 / 16

7
2.5 Electrical
2.5.1 WARNING: The appliance MUST be earthed. All wiring must conform to BS7671: IEE Wiring Regulations.
2.5.2 WARNING: The CMEV.4e / CMEV.4eHT units must be isolated from the mains supply before removing
the fan motor assembly.
2.5.3 The installation must be carried out by a qualified Electrician.
2.5.4 When supplied from a 6 amp lighting circuit no local fuse is required. If electricity is not supplied via the
lighting circuit, a localised 3 amp fuse must be used (see wiring diagrams).
2.5.5 The CMEV.4e / CMEV.4eHT units are supplied with a pre-wired mains flexible cord – PVC sheathed, 5-core
green/yellow, blue, brown, black & grey & 0.75mm 2 .
‘If the supply cord is damaged, it must be replaced by a special cord/assembly available from the
manufacturer or its service agent. The replacement must be carried out by a qualified Electrician in
accordance with IEE or local regulations’.
2.5.6 Depending on required wiring (see diagrams), a triple-pole or a double-pole switch having a minimum contact
separation of 3.0mm must be used to provide isolation for the unit.
2.5.7 The recommended switches / sensors for use with either models are:
• For CMEV.4e, wire using either switch-live (lighting circuit) with/without external sensor or via a Zehnder
ZGS2 2-position switch with an external sensor (see below for function details).
• For CMEV.4eHT, wire using either switch-live (lighting circuit), via a Zehnder ZGS2 2-position switch
with/without an external sensor or via a Zehnder ZGS1 3-position switch (see below for function details).
(See Wiring Diagrams on page 8).
2.5.8 The controllers must not be mounted in a bathroom or above/closer than 1 metre to a cooker where it could be
affected by excessive heat or moisture.
ZGS2 Remote Function
Switch Positions
Trickle (I) Fan running at trickle speed
Boost (II) Fan running at med/boost speed
II
I
II
I
ZGS1 Remote Function
Switch Positions
Trickle (Centre position) Fan running at trickle speed
Medium (I) Fan running at medium speed
Boost (II) Fan running at boost speed
CMEV.4e / CMEV.4eHT
CMEV.4eHT only
ZGS2
ZGS1