andrews CWH 30/201, Руководство по эксплуатации

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Introduction 6 MAXXfl o EVO
NORMAL CAPACITY
The capacity in litres of the in-built DHW tank is given in the table below:-
Tank size 200 litres 300 litres
Models CWH 30/201
CWH 60/201 CWH 30/301
CWH 60/301
CWH 90/302
CWH 120/302
HEATER INSTALLATION AND MAINTENANCE
This heater has been designed for use with G20 and G31 gases and is manufactured to give an effi cient, safe and
long service life. To ensure continued trouble-free operation of this heater at maximum effi ciency, it is essential that
correct installation, commissioning, operation and service procedures are carried out strictly in accordance with the
instructions given in the “Installation & Maintenance Manual” supplied separately to this guide.
Only original parts and accessories from the manufacturer may be used on this heater. Using non-approved parts may
compromise the safety of the heater and invalidate any warranty.
REGULATIONS AND STANDARDS
It is the law that all gas heaters are installed by a competent person in accordance with the regulations. Failure to
install or maintain heaters correctly could lead to prosecution.
It is in your own interest, and that of safety, to ensure that the law is complied with. The installation of the Heater
MUST also be in accordance with the current Wiring Regulations, the Local Building Regulations, Building Standards,
the Bye Laws of the Local Water Undertaking, any relevant requirements of the Local Authority.
A detailed guide to the Installation and maintenance of this heater is supplied separately (Installation and
Maintenance Manual) and this is intended for use by the specialist commercial installers and service engi-
neers.
FROST PROTECTION
This heater is fi tted with an automatic Frost Protection system. Provided there is Mains power, Gas is connected and
the heater is not in a lockout condition, this system will be eff ective in preventing damage to the heater caused by
frozen water. This protection will be active even when the controls are in the standby operation mode.
If the temperature of the DHW tank should fall below 5 O C heat engine(s) will operate to bring the DHW tank tempera-
ture up to 6 O C before turning off again.
If the temperature of the internal fl ow pipework (heat engine) was to drop to 3 O C the heat engine(s) will operate until
the temperature registered by the heat engine return sensor reaches 16 O C. This will also heat up the tank temperature
to around 16 O C