6
Keston Heat - Frame & Header Kits
3.3 GAS HEADER
The Gas header consists of a custom manufactured 2” manifold. This is located in a cradle incorporated within the header mounting skid.
3.4 MIXING HEADER
The mixing headers are insulated and are supplied with an auto air vent and drain point as standard.
3.5 BOILER CONNECTION KITS
3.6 FREE-STANDING FRAMES
If boilers in cascade are positioned in-line the installer has the option to either wall mount the boilers or mount boilers on optional frame
kits available. If mounting in-line product on frames, optional frame kit UIN 355013 must be specied in the correct quantity, one frame
kit for each boiler installed in cascade.
3.7 INSTALLATION AREA AND DIMENSIONS
Care must be taken to ensure adequate access for boiler / cascade system installation and servicing.
A minimum of 450mm must be provided from the front of the installed boilers in cascade to facilitate boiler servicing.
Consideration to connecting heating ow and return pipework, gas supply and condensate drainage must be given. Routing of the
condensate drain must be made to allow a minimum fall of 1 in 20 away from the installed boilers in cascade, throughout its length.
Adequate room above the boilers must be provided to install and service the boiler ue system. Further information with respect to ue
and condensate drain connection is provided in the installation and servicing instructions provided within the boilers packaging carton.
Legend
1. 1
1
/4" x
3
/4" x 1
1
/4" Tee
2. Close Taper Nipple
3. Safety Relief Valve 6 bar
4. Isolation Valve
5. 1
1
/4" x
1
/2" x 1
1
/4" Tee
6. Drain O Cock
7. Connection Pipe Assembly
8. Non Return Valve
9. 1
1
/4" Taper Male to 1
1
/4" Parallel Hex Adapter
10. Boiler Flow Flexible Connection from Header
11. Boiler Return Flexible Connection from Header
Items 1,2,3,4,5 & 6 are supplied with the boiler. (AL-208973
Isolation Valve Kit)
Items 7, 8 & 9 are supplied with the Header Kit
Items 10 & 11 are pre-assembled to the water header.
Assemble ttings together as shown using appropriate sealing
material. Do not t the safety relief valve (item 3) at this stage.
When assemblies are complete t to boiler ow and return stubs
with suitable sealing material. The safety valve (item 3) can now
be tted using suitable sealing material.
Ensure all isolation valves, pressure relief valves and drain valves
are tted to allow unrestricted operation.
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