IDEAL British Gas 100 RD2, Руководство по установке и обслуживанию

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British Gas 100 & 125 RD2 -
Installation & Servicing
SERVICING
36 PICTORIAL WIRING
LEGEND
w
white
r red
bk black
br brown
pk pink
b blue
gy grey
v violet
y/g yellow/green
35 EXTERNAL CONTROLS
The wiring diagrams illustrated in Frames 35-37 cover the
systems most likely to be fitted to this appliance.
For wiring external controls to the British Gas RD2 boiler,
reference should be made to the system wiring diagrams
supplied by the relevant manufacturer, in conjunction with the
wiring diagrams shown in Frame 31.
Difficulty in wiring should not arise, providing the following
directions are observed:
1. Preferred Wiring Method.
Controls that switch the system on or off, e.g. a time
switch, must be wired, in series and terminate with a volt
free contact across EC1/EC2.
2. Alternative Wiring Method. A switched live supply may be
connected to EC1 (leaving EC2 without connection), which
MUST BE fused at 2A MAXIMUM.
IMPORTANT.
A link wire between terminal EC1and EC2 is not acceptable.
Note. Route the cable to terminals EC1 & EC2 from the RH
rear of the boiler and across the top of the control box.
Refer to Frame 31. Leave sufficient length of cable to
enable it to be routed as shown once the casing has been
fitted and secure to the casing with the ties provided.
4. Controls that override an on/off control, e.g. frost
thermostat must be wired, in parallel, with the control(s) to
be overridden. Refer to Frame 38.
5. If a proprietary system is used, follow the instructions
supplied by the manufacturer.
Advice on required modifications to the wiring may be
obtained from the component manufacturers.
Notes.
1.
Connection between a frost thermostat and the time
control should be made without disturbing other wiring.
2. A frost thermostat should be sited in a cool place in the
house, but where it can sense heat from the system.
Mex 1312
w
w
Burner On
neon
Detection
electrode
r r
Hot surface igniter
gy
gy
Fan
Fan
sensor
gy
gy
v
v
br
b
y/g
r
Read
note1.
pk
Control box
earth screw
MAINS
SUPPL
Y
Reset button
or
or
b
br
com
NO
NC
LED 4
LED 3
LED 2
LED 1
Fuse
Modem
v
r
pk
pk
r v
b
br
br
b
y/g
r
r
Flow sensor
Return sensor
b
b
O/heat 'stat
Air pressure switch
Boiler control
potentiometer
Note 1.
Volt Free contacts
If switched live is connected here
(EC1) leave other terminal without
connection. If programmer is used
here (EC1) and the switched live
MUST BE FUSED at
2 A Max .
Alternative Wiring Method. Preferred Wiring Method.
INST
ALLA
TION