FULTON FHE-250 - SECTION 1 - INTRODUCTION

FHE-250 MANUAL 09 2014 ISSUE 2
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The boilers are fully automatically controlled, oor standing and efcient condensing appliances.
The FHE-250 comprises of a single module capable of delivering 250 kW.
Up to 12 FHE-250 modules can be cascaded (for simplicity, only 250-1000 kW models are shown in
this manual), being stacked either vertically or horizontally.
The boiler controls built into the appliance include:
• Volt free ‘alarm’ contacts
• Burner hours run meters
• System temperature indication
The boilers can draw combustion air from the room or via ducting from outside.
Each module provides a maximum of 250 kW heat output and will modulate down to 41.66 kW
(see the table in Section 5.2 - Boiler Specication, for efciencies at different temperatures).
Boilers comprising of more than one module will share the heating load equally among modules,
switching modules off individually once the heating load drops below 16.67% of the total boiler
capacity. This way, a decreasing load is continuously matched for optimum efciency. The minimum
output from all models is 41.66 kW, providing a turndown ration of 6:1 for the 250 kW, 12:1 for the
500 kW, 18:1 for the 750 kW and 24:1 for the 1000 kW. Modules will re on the basis of least hours
run under the dictates of lead/lag sequencing from the onboard controller.
Each module includes a ap which only opens when the fan is running. This prevents energy wastage
when the boiler module is not ring.
The boilers are capable of high operating efciencies and low emissions (see Section 5) through
the combination of a sophisticated control system with premix burner and a stainless steel heat
exchanger.
These boilers are certied to meet the requirements of the EC Gas Appliance Directive, Boiler
Efciency Directive, EMC and Low Voltage Directive.
CAUTION
WATER SOFTENER and CHEMICAL TREATMENT
The chemicals required to operate the water softeners and chemical
treatment equipment CAN BE SUPPLIED by Fulton. It is the responsibility
of the operator to ensure adequate supplies of chemical are available at all times
(including commissioning). Costly repairs could be required should the plant operate
without chemicals or the wrong dosage of chemicals.
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SECTION 1 - INTRODUCTION
1.1
GENERAL
1.2
TECHNICAL DATA
For a full specication refer to Section 5.2 - Boiler Specication.