Telford Tristor MF Series, Installation Manual, Page: 5 / 20

ALL SYSTEMS
What is the incoming static cold water pressure at the inlet to the system? bar
Has a strainer been cleaned of installation debris (if fitted)? Yes No
Is the installation in a hard water area (above 200ppm)? Yes No
If yes, has a water scale reducer been fitted? Yes No
What type of scale reducer has been fitted?
What is the hot water thermostat set temperature?
0
C
What is the maximum hot water flow rate at set thermostat temperature (measured at high flow outlet)? l min
Time and temperature controls have been fitted in compliance with Part L of the Building Regulations? Yes
Type of control system (if applicable) Y Plan S Plan Other
Is the cylinder solar (or other renewable) compatible? Yes No
What is the hot water temperature at the nearest outlet?
0
C
All appropriate pipes have been insulated up to 1 metre or the point where they become concealed Yes
5
Step by Step Install
1. Site the Tristor on a flat surface
2. Check drain valve is closed and 3kw immersion heaters are tightened firmly with O-ring
seal making contact to threaded boss! Do not over tighten.
3. The Tristor needs at least 300mm minimum access to remove the white plastic lid from
the top of Tristor to service F&E Tank.
4. Connect 3 bar cold mains 22mm to cold inlet motorised valve marked (number 1)
3 bar pressure reducing valve must be installed (Not supplied)
5. Connect domestic 22mm hot outlet to blend valve (number 2)
6. Push shock arrester into 22mm Tec Tite push fit tee (number 3)
7. Wire over fill box 3 core 0.75mm cable (Supplied) to a none switched 5amp fuse
spur >Fuse spur not supplied.
8. Turn power on by the consumer unit to power fused spur that’s connected to over fill
box, valve will open and supply water to Tristor ready for manual fill to F&E tank
! Do not power immersion heater at this point !
9. Remove 7” round copper F&E tank lid (Number 5) then add inhibitor 1 litre (Not Supplied),
open service valve (number 4) and slowly start filling F&E tank to water indent fill line
(number 6) close service valve once filled to line.
Do not over fill F&E tank past the
half way fill indent line, this will activate float switch when heated and isolate water
supplied to Tristor.
10. Open hot taps around the property to release air.
11. To test float switch (Number 7) leave hot tap open and gently raise float by hand, red
LED should flash aggressively on over fill box and water should stop running from tap.
12. Replace 7” copper lid firmly (Number 5)
13. 3kw immersion heaters must be wired by a qualified electrician to a 20amp fused spur.
Once wired then switch on fuse spur to immersion heater.
14. Water softener is required on cold inlet if water exceeds 150 PPM
*
Number references can be found on pages 9, 10 & 11.