Potterton Isis HE Installation, Operation & Maintenance Manual page 8

SECTION 2
PAGE 6
GENERAL
This Boiler is NOT SUITABLE for installation in a
normally occupied area. (i.e. Kitchen).
A LIFETIME GAURANTEE is available on this boiler
please refer to our standard terms and conditions for
details.
The Potterton Isis HE cast iron sectional boiler
available in outputs from 440 kW (6 section model) to
1172 kw (15 section model). Specially designed and
prewired control panels allow full boiler control. Table 3
gives kW output and technical data for each model.
The boiler has a match tested package burners,
available for Natural Gas, LPG, 35 Second & 28
second Oil. Dual Fuel options are also available. The
package burner is supported on the front waterway
section to which it is attached by hinges on one side
and locking nuts on the other. Hinge points are
interchangeable allowing for left or right hand door
opening by turning the door through 180° at the
erection stage.
The Isis HE is suitable for use on fully pumped open
vented or sealed systems with a maximum design
pressure of 6-bar (87 p.s.i.) and up to a maximum
operating temperature of 90°C.
The Isis HE boiler is an overpressure type with three
pass, reverse flame design. The first two passes in the
combustion chamber, the third in the convection tubes
where the turbulence to achieve high heat transfer is
generated by the extended surface area and inserts
achieving operating efficiencies of up to 85.5% gross
CV (91% nett CV).
The Isis HE is constructed with BS1452 Grade220 cast
iron heat exchanger, constructed in accordance with
EN303.1 The boiler package meets Gas and Oil
requirements of M&E3 and burners EN767.
The waterway sections are joined with 'O' rings and
secured with tie rods with the final sealing of the
combustion chamber being made during assembly with
boiler cement and silicone rubber.
The boilers are supplied unassembled and the largest
individual section is approximately 1.4m x 1m x 0.18m
and weighs approximately 198 kg.
A 70mm thick insulating blanket encloses the
assembled waterway sections and the complete unit is
enclosed with pre-coated steel panels finished in red.
POTTERTON COMMERCIAL PRODUCTS DIVISION
INSTALLATION, OPERATION & MAINTENANCE MANUAL
Standard Supply
•
Unassembled cast
dependent on boiler output).
•
Flue Spigot, insert tubes, combustion chamber
door, burner adaptor plate, flanges, extension
turrets.
•
Boiler wrap around insulation
•
Insulated casing
•
Cleaning tools
•
Control Panel
Controls
The Isis HE range are supplied as standard with an
integral control panel which is fitted with boiler on/off
control thermostat,
thermostat, boiler thermometer, water pressure gauge
and overheat indicator light.
A 240V single-phase supply is taken to the control
panel. A 415V three-phase supply should be taken to
the burner motor connections.
Optional Extras
•
Volt free contacts
•
Fully closing dampers
Shipping – Packaging
The boiler package is delivered unassembled on
two/three pallets depending on size with the burner
separately either in a carton or pallet.
It is recommended that the manufacturer's trained
engineers should
commissioning, as will make valid the LIFETIME
GUARANTEE. See back page of this manual for
service office addresses.
ISIS HE
iron sections (number
high/low thermostat
carry out erection
limit
and