Lailey abd Coates LC-07 - Page 13

Installation Manual 2013 Riv 2 13
Plumbing Installation Continued
Internal Pump Settings
● If used with radiators, pump should be set to AUTO
● If used with under floor heating, pump should be set to MANUAL and adjusted to
Settings 1, 2 or 3 to achieve required flow rate as per table above.
● If a combination of radiators and under floor heating, pump should be set to
manual as above.
If the required flow rate is not achieved, an auxiliary pump can be fitted to either or both
Central Heating and Hot Water and wired to 230 Volt connections on wiring block.
Please Note:
●Zonevalvesshouldhaveamaximumchangeovertim e  o f60se c o nds .
●Flowandreturnpipesare1‐1/4’’female.Amale  t o fem a le  re duc e r c a n be u s ed i f
necessary.
●Tofacilitateeaseofmaintenanceis o la t i ng valves s h o uld b e ins t a l le d o n flowa nd
return pipes as close to the unit as possible.
●Aflowmetershouldbeinstalledtoensure c o rr ec t  flowr a t e ( a vaila b le fro m L a i le y
and Coates).
●Pipeconnectionscanbemadeeither t o  t o p o r bo t t o m o fun it .
●AbypassshouldbeinstalledtotheH e a t ing  t o fac i lit a t e  a no verru n o f1mi nut e  t o t he
internal pump.
Prior to initial start-up please ensure following:
●AllAirispurgedfromsystem(solarflushpum p re c o m m e nde d o n U/ Flo o r H e a t ing
Systems).
●AutomaticAirPurgeValveonunitisopen.
●WaterPressureisatapproximately2ba r ( t hi s wil ln ee d re ‐ pre s s ur is in g a s  a ir is
released from system).
●Allvalvesareopen.
●Back‐upHeatervesselisfull.