Leda 270 Installation And Owner's Manual - page 9
9
HWP049
15mm FI Flexible
Connector 175mm
Long
1
Item 11. To connect pump assembly
to 5-‐way tee at the base of the tank
HWP025
5 Way Cold Inlet Tee
1
Item 12. For cold inlet and solar flow
connection at the base of the tank
HWP005
20mm x 15mm
Reducing Bush
1
Item 13. To be used on solar return
connection to tank
HWP012
15mm Brass Plug
1
Item 14. For unused point on 5-‐way
tee at base of the tank
HWP015
15mm Brass Hex
Nipple
2
Item 15.
HWP020
15mm FI Tee
2
Item 16. For connecting to cold
expansion valve and cold supply to
tempering valve.
HWP021
15mm Compression
Tee
1
Item 17.
HWP031
15mm FI Brass Hex
Socket
1
Item 18.
HWP065
15mm MI x 15mm
Compression Elbow
1
Item 19.
HWP066
20mm MI x 15mm
Compression Elbow
1
Item 20.
HWP080
15mm Sensor Fitting
90mm Long
1
Item 21. To be installed in 5-‐way tee
at base of tank. See diagram
HWP580
SS M4 x 15mm Screw
8
To attach pump/controller cover to
tank
HWP591
15mm Red Fibre
Washer
3
To be used on the loose nut
connections on the 5-‐way tee at
base of tank.
Installing the pump and controller
The electronic solar controller and water circulating pump are supplied with the storage
tank. They are enclosed in a weatherproof UV resistant housing and the whole assembly is
fitted to the side of the storage tank directly above the cold water inlet using 8 screws
provided in the Tank Parts Kit. Nut-‐serts are provided in the tank casing for this purpose.
Sensor wires
connect the controller to sensors in the storage tank and the solar collector
panels. These sensors detect temperature differentials between the solar panels and the
tank and cause the pump to turn on and off. It is therefore critical to ensure they are
protected from possible damage and the use of protective conduit is recommended for all
external areas of exposure. Care should be taken to ensure the sensor wire from the solar
panels does not come into contact with the solar flow or return lines as the excessive
temperatures that can be generated will interfere with the sensors and cause the
controller to malfunction. If a wire is cut or broken, it must be reconnected, soldered and
shrink-‐sealed.