Flow Wiring Diagram - IDEAL icos system HE15 Installation And Servicing

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40 FUNCTIONAL FLOW WIRING DIAGRAM
Dry fire thermistor
LEGEND
b - blue
bk - black
br - brown
gy - grey
or - orange
pk - pink
41 COMMISSIONING AND TESTING
A. Electrical Installation
1. Checks to ensure electrical safety should be carried out by
a competent person.
2. ALWAYS carry out the preliminary electrical system
checks, i.e. earth continuity, polarity, resistance to earth
and short circuit, using a suitable test meter.
WARNING.
34
INSTALLATION
r - red
v - violet
w - white
y - yellow
y/g - yellow/green
Whilst effecting the required gas tightness test and purging air from the gas installation,
open all windows and doors, extinguish naked lights and DO NOT SMOKE.
y r bk v
nm8043b
B. Gas Installation
1. The whole of the gas installation, including the meter,
should be inspected and tested for tightness and purged
in accordance with the recommendations of BS. 6891.
In IE refer to I.S.813:2002.
2. Purge air from the gas installation by the approved
methods only.
icos system -
Installation and Servicing