Zeus Maior 24 Instructions
Introduction
Boiler Operating Instructions
The Immergas Zeus Maior 24 boiler is a wall mounted, fan assisted room-sealed combination boiler, incor-
porating a 60 litre unvented hot water storage cylinder. Heat output is controlled by a modulating gas valve,
with fully automatic direct burner ignition.
The boiler, providing both central heating and domestic hot water supply, is designed for use with a fully
pumped, sealed and pressurised heating system using
Natural Gas or LPG
. The boiler is supplied for use
with one of these gas types and must be converted before it can be used on another gas.
A boiler
equipped for natural gas must not be used on LPG or vice versa.
The boiler is supplied with a pump, diverter valve, pressure relief valve, expansion vessel and pressure
gauge fully assembled and tested.
As supplied, the boiler will automatically modulate to provide central heating outputs between 10.5 and
27.9kW. The maximum output available for domestic hot water is 27.9 kW and provides hot water at tem-
peratures of up to 60°C and flow rates of up to 17 litres/min (at a temperature rise of 60°C)
IMPORTANT
All gas appliances must be installed by a competent and qualified person, in accordance with relevant
clauses of applicable standards and recommendations. These include but may not be limited to the follow-
ing:-
I.S. 813 Domestic Gas Installations
I.S, 820 Non-Domestic Gas Installations
All relevant Building Regulations.
Local Water Bye Laws
IEE Wiring Regulations
Health & Safety legislation
This appliance meets the requirements of IPX4D, ie degree of protection against moisture.
Failure to install this appliance correctly could lead to prosecution. It is in your own interest and that of
safety to ensure that the law is complied with. Manufacturer's instructions must
NOT
be taken in anyway as
over-riding statutory obligations.
Key:
1 - Heating temperature selector
2 - Domestic hot water temperature
selector
3 - Boiler over temperature and flue
block red indicator
4 - Power On green indicator lamp
5 - Operating mode and Reset switch
6 - Lockout red indicator lamp
7 - Boiler thermometer
8 - Boiler manometer
Using the Boiler
Before lighting, make sure that the system is full of water and that the manometer (8) indicates a pressure
of 1 - 1.2 bar.
-Open the gas valve on the gas supply to the boiler.
-Turn Operating mode switch (5) to Hot Water or Hot Water/Heating.
N.B.:
. With the switch set to the central Heating temperature setting (1) is not active, and the domestic
water temperature is controlled by selector (2).
With the switch set to the central heating temperature is set using selector (1) while selector (2) is
used for the domestic hot water. Turn the selectors clockwise to raise the temperature, anticlockwise to
lower it. Boiler operation is now automatic.
