IDEAL EVOMAX 2 30, Product & Flue Manual

10

SUGGESTED ENGINEERING SPECIFICATION

OVERVIEW

The boilers must be fully automatically controlled, wall 

mounted, fanned, super-efficient condensing appliances 

utilising an aluminium silicon alloy heat exchanger and be 

suitable for connection to fully pumped open vented or 
sealed water systems. 

CONTROLS

The condensing boilers must have connectivity  

for all common types of BMS integration including 0-10v, volt 

free and OpenTherm connections. Additional modules may be 

used for BACnet, LONWorks and MODBus gateways. Where 

no BMS is present a modulating sequencer must be available.
The boiler must be fully modulating with a 5:1 turndown ratio 

and include control features enabling set point adjustment, 

heating circuit control of one constant temperature and one 

DHW circuit or 2 constant temperature circuits, and safety 

lock out parameters including fault diagnosis for both boiler 

and external components such as sensors or pumps. 
Boiler capabilities must include, with the use of external 

components, frost protection, weather or room compensation 

and system pump control. 

FLUE 

The condensing boilers must be suitable for use with a room 

sealed flue or open flue applications including  

C13, C33 and B23 classifications. The combined flue outlet 

and air inlet must be situated on the top  

of the boiler. 

HYDRAULIC

The condensing boiler must be and be suitable for connection 

to fully pumped open vented or sealed  

water systems. All hydraulic connections including flow return 

and condensate drain must be located on the bottom of the 

boiler. Hydraulic connections must be uniform across the 

outputs available in the range to ensure ease of installation 

and maintenance in mixed output cascades. The boiler must 

have a maximum operating pressure of 6 bar and be suitable 

for heating and indirect hot water systems. 

DIMENSIONS

The condensing boiler range must have a universal compact 

width and height across the range to ensure mixed output 

cascades maintain the same universal configuration. 
Maximum permitted wall area of 0.43m

²

. 

MOUNTING

The condensing boilers can be installed either on the wall or 

into a prefabricated floor mounted frame. Wall brackets must 

be located at the top of the boiler and visible from the front 

to aid installation.

EFFICIENCY

The condensing boilers are capable of high seasonal 

efficiencies with a minimum requirement of 96.2% and low 

NOx emissions no greater than 39.8mg/kWH for natural gas 

and 80mg/kWH for LPG. 
30, 40 and 60kW models must have a Seasonal Space 

Heating Energy Efficiency of A. 

APPROVALS

The boiler must be tested and certified to; EN 483, EN 677, 

PREN 15420, BSEN 15417, BSEN 656, BSEN 60335-2-102, 

BSEN 55014-1 and BSEN 55014-2 for use with Natural Gas. 

Boilers are certified to meet the requirements of the EC Gas 

Appliance Directive, Boiler Efficiency Directive, EMC and Low 

Voltage Directive.
The manufacturer must be ISO 9001 accredited.

SPECIFICATION

• 

 The 30kW boiler will be capable of flow rates for common 

systems using either 11°C, 15°C, 20°C or 25°C temperature 

differentials.

• The 40, 60 and 80kW boiler will be capable of flow rates for  

   common systems using either 11°C, 15°C, 20°C, 25°C or 30°C  

   temperature differentials.
• The 100kW boiler will be capable of flow rates for common  

   systems using either 15°C, 20°C, 25°C or 30°C temperature  

   differentials.
• The 120 and 150kW boiler will be capable of flow rates  

   for common systems using either 20°C, 25°C or 30°C  

   temperature differentials.

SOURCING

The condensing boiler must be manufactured or finally 
assembled in the United Kingdom.

CASCADE

The boiler must be configurable up to 6 boilers (max 900kW) 
in cascade using a prefabricated frame and header kit. 

WARRANTY

The boiler must be available with a 5 year warranty. 

The Suggested Engineering Specification 

is wording designed for specifiers to copy 

and paste into their specifications to ensure 

inclusion of Ideal Commercial boilers.