Rheem 511161 Owner's Manual And Installation Instructions page 36

INSTALLATION – SOLAR CONTROL UNIT
SOLAR STORAGE TANK WITH RAISED SOLAR HOT INLET
Numbers in parentheses
To connect the solar cold pipe to the solar control unit on a solar Loline storage tank:
Fit the union R 3/4 M x DN15 (2) to the solar cold water outlet of the solar storage tank.
1.
Undo the compression nut and olive from the underside of the solar control unit (6) and put aside.
2.
Loosen, but do not remove, the four screws (7) which attach the solar control unit (6) to the solar storage
3.
tank and slide the control unit upwards to the stops in the bracket slots.
Place a compression nut (4) and olive (5) over each end of the DN15 preformed pipe (3), pre-insulated
4.
with the 280 mm long x 13 mm ID insulation (10), and locate the pipe in the union (2) at the solar cold
outlet and in the union at the inlet of the circulator on the underside of the solar control unit (6), ensuring
the straight end is orientated upwards.
5. Return the solar control unit (6) to its original position, ensuring the DN15 preformed pipe (3) is well seated
in the union (2) and in the inlet of the circulator. Connect the preformed pipe using the compression nuts (5)
and olives (6) provided.
Tighten the four screws (7) attaching the solar control unit (6) to the solar storage tank.
6.
Disassemble the fitting union, and place a compression nut (4) and olive (5) over the end of the copper
7.
pipe protruding from the side of the solar control unit (6), and over the end of the solar cold pipe (to the
collector).
Connect the solar cold pipe (to the collector) to the pipe from the solar control unit (6) using the nipple (1)
8.
from the fitting union and the compression nuts (4) and olives (5).
9. Clip the cold sensor (10) over the end of the preformed pipe adjacent to the union (2) at the solar cold
outlet connection.
10. Insulate the lower end of the preformed pipe (3), cold sensor and union (2), with an 80 mm long x 35 mm ID
piece of insulation (11) and secure with two cable ties (12).
Connect the hot sensor lead (from the solar collector installation) to the hot sensor cable connector at the
11.
side of the solar control unit (6).
Note: Ensure the hot sensor lead is not in direct contact with the solar pipe work at any point of the
collector circuit, otherwise damage to the sensor lead can occur due to the high temperatures which can
be experienced within the pipe work. Damage to the hot sensor lead can result in solar gain not being
achieved and the freeze protection system being rendered inoperative. The hot sensor lead may be cable
tied to the outside of the insulation on the solar pipe work.
To connect the solar hot pipe to the solar storage tank:
Fit the service 3-way valve assembly (9) to the solar hot water inlet of the solar storage tank. Ensure the
12.
service valve inlet is pointing vertically upwards.
Connect the solar hot pipe (from the collector) to the inlet of the service valve assembly (9) using the
13.
compression nut (4) and olive (5) provided with the valve.
Connect a DN15 copper drain line to the service valve to carry the discharge clear of the water heater and
14.
solar control unit (refer to
provided with the valve.
15. Insulate the drain line from the service valve (9) with closed cell type insulation or similar (minimum
thickness 13 mm). The insulation must be weatherproof and UV resistant if exposed.
16. After the collector circuit has been purged of air (refer to
insulate the service valve assembly (9), from the solar tank to the drain line of the service valve, with an
80 mm long x 35 mm ID piece of insulation (11) and secure with two cable ties (12).
refer to items on diagram on page
"Service Valve Drain"
35.
on page 46), using the compression nut (4) and olive (5)
"Bleeding The Solar Collector(s)"
36
on page 50,