Kwikot Kwiksol Installation guide

INSTRUCTION, INSTALLATION & WARRANTY MANUAL

INDEX
A. INSTALLER COMPETENCY 3
B. COMPONENTS
C. UNDERSTANDING THE THERMOSYPHON - CLOSE COUPLED
CIRCULATION METHOD 3
D. UNDERSTANDING THE SPLIT PUMPED CIRCULATION
METHOD 3
E. SOLAR SYSTEM TYPES 4
F. FEATURES OF SOLAR FLAT PLATE COLLECTOR PANEL 6
G. FEATURES OF THE SOLAR VACUUM TUBES 7
H. ROOF LOCATION OF A SOLAR SYSTEM 7
I. INSTALLATION OF A SOLAR WATER HEATER SYSTEM 9
J. FILLING A SOLAR SYSTEM 17
K. DRAINING AN INDIRECT SOLAR SYSTEM 18
L. GENERAL MAINTENANCE OF THE SOLAR SYSTEM - FOR
THE HOMEOWNER 18
M. SAFETY PRECAUTIONS & EMERGENCY SHUTDOWN
PROCEDURE - FOR THE HOMEOWNER 19
N. WARRANTIES - FOR THE HOMEOWNER 19
O. PERTINENT INFORMATION - FOR THE HOMEOWNER
(TO BE COMPLETED BY THE INSTALLER) 23
P. PERTINENT INFORMATION - FOR KWIKOT (PTY) LTD
TO VALIDATE THE WARRANTY 25

Kwiksol Instruction, Installation & Warranty Manual 3
A. INSTALLER COMPETENCY
The installer must be an accredited Eskom solar installer, qualified in plumbing and au fait
with the required SANS 10106 Solar Water Heater and SANS 10254 Electric Water Heater
Specifications.
B. COMPONENTS
All components must be of an approved type and SABS approved where required to be so.
C. UNDERSTANDING THE THERMOSYPHON – CLOSE COUPLED
CIRCULATION METHOD
The compulsory requirement for a themosyphon circulation method is that the solar water
heater is installed in a position higher than the solar flat plate collector panel/s or manifold
of the solar vacuum tubes. The circulation flow occurs without any moving parts or auxiliary
electrical energy input into the system.
This system operates according to the basic principles of physics: a liquid if heated,
becomes less dense and rises upwards. The heated transfer fluid, either water (direct
system) or propylene glycol (indirect system) in the solar flat plate collector panel/s or
manifold of the solar vacuum tubes, rises up into the solar water heater and transmits heat
to it, while the cold transfer fluid travels back down to the solar flat plate collector panel/s
or manifold of the solar vacuum tubes and the process is repeated.
THERMOSYPHON
CLOSE COUPLED SYSTEM
THERMOSYPHON
SPLIT SYSTEM
When there is no solar radiation, the transfer fluid in the solar flat plate collector panel/s
becomes heavy, blocks the circulation and prevents the heat accumulated in the solar water
heater from being dispersed.
D. UNDERSTANDING THE SPLIT PUMPED CIRCULATION
METHOD
It is not always possible or convenient to install the solar water heater in a higher position
than the solar flat plate collector panel/s or manifold of the vacuum tubes (thermosyphon
circulation method), so the pumped circulation method has to be used.

4 Kwiksol Instruction, Installation & Warranty Manual
A circulating pump either electrical or a 12V Pump with a PV Panel can be used. The control
unit using two sensors constantly monitors the temperature of the solar flat plate collector
panel/s or solar vacuum tubes and the solar water heater, powering the circulation pump
only when the water (direct system) or propylene glycol (indirect system) in the solar flat
plate collector panel/s or solar vacuum tubes is hotter than the water in the solar water
heater.
When the temperature difference is less than the set point during the working process of
the circulating pump, the pump will stop. When the temperature of the water in the solar
water heater reaches the highest set point, the monitor will stop the circulating pump.
The electrical thermostat and element will automatically maintain the water temperature
of the upper part of the solar water. The set temperature on the thermostat must be
lower than the maximum temperature attainable on the solar flat plate collector panel/s or
manifold of the solar vacuum tubes.
Pumps must be installed in accordance with the manufacturers instructions with ease of
access for maintenance/repair.
E. SOLAR SYSTEM TYPES
1. Direct Frost Free System – Close Coupled and Split System
(Thermosyphon and Pumped Circulation Methods)
The Direct system with solar flat plate collector panels is used in areas where the ambient
temperature never falls below 5ໍC and the water quality is good (less than 600ppm total
dissolved solids/minerals).
The water to be used from the solar water heater circulates through the solar flat plate
collector panel/s, transferring solar energy into the storage tank. The solar water heater is
fitted with a thermostat and element in the event the solar energy is not strong enough to
heat the water to the required set temperature i.e. on overcast days and in the evening.
The Direct system can be installed as a close coupled system (thermosyphon circulation
method) or as a split system (themosyphon or pumped circulation methods).

Kwiksol Instruction, Installation & Warranty Manual 5
Number and Size of Solar Flat Plate Collector Panel to Use
SOLAR WATER
HEATER
NUMBER OF
PANELS
ENERGY
TRANSFER LIQUID
HEAT LOSS
AT NIGHT
150lt 1 x 2m2Water 9,84%
200lt 1 x 2.5m2Water 12,44%
300lt 2 x 2m2Water 8,77%
2. Direct Frost Resistant System – Close Coupled System (Thermosyphon
Circulation Method)
The Direct system with solar vacuum tubes is used in areas where the ambient temperature
falls below 5ໍC and the water quality is good (less than 600ppm total dissolved solids/
minerals.
The water to be used from the solar water heater circulates through the manifold of the
solar vacuum tubes, transferring solar energy into the storage tank. The solar water heater
is fitted with a thermostat and element in the event the solar energy is not strong enough to
heat the water to the required set temperature i.e. on overcast days and in the evening.
A pipe set is supplied with silicone inserts to connect the solar water heater to the manifold
of the solar vacuum tubes manifold, in order to prevent freezing. The manifold is insulated
and resistant against freezing.
Copper tube with Thermal Pipe
Lagging and Silicone Insert
Number of Solar Vacuum Tubes to Use
SOLAR WATER
HEATER
NUMBER OF
TUBES
ENERGY
TRANSFER LIQUID
HEAT LOSS
AT NIGHT
100lt 12 (2 x 6) Water 16,05%
150lt 16 (1 x 6 + 1 x 10) Water 17,53%
200lt 20 (2x10) Water 12,60%
300lt 32 (2 x 6 + 2 x 10) Water 9,1%
3. Indirect Frost Resistant System - Close Coupled and Split System
(Thermosyphon and Pumped Circulation Methods)
The Indirect system is used in areas where frost occurs, where the ambient temperature
fall below 5ໍC and the water quality is poor (more than 600ppm Total Dissolved Solids/
Minerals).

6 Kwiksol Instruction, Installation & Warranty Manual
The water to be used from the solar water heater does not circulate through the solar flat
plate collector panel/s, but remains in the solar water heater and is heated through a heat
exchanger around the inner vessel. Propylene glycol is used to circulate through the solar
flat plate collector panel/s, transferring solar energy into the heat exchanger and in turn
heating the water stored in the solar water heater.
The solar water heater is fitted with a thermostat and element in the event the solar energy
is not strong enough to heat the water to the required set temperature i.e. on overcast days
and in the evening.
The Indirect system can be installed as a close coupled system (thermosyphon circulation
method) or as a split system (themosyphon or pumped circulation methods).
Number and Size of Solar Flat Plate Collector Panel to Use
SOLAR WATER
HEATER
NUMBER OF
PANELS
ENERGY
TRANSFER LIQUID
HEAT LOSS
AT NIGHT
150lt 1 x 2m2Propylene Glycol 9,84%
200lt 1 x 2.5m2Propylene Glycol 13,34%
300lt 2 x 2m2Propylene Glycol 8,50%
F. FEATURES OF SOLAR FLAT PLATE COLLECTOR PANEL
• Black coated aluminum frame, 4mm toughened prismatic
and non-reflective anti-hail tempered glass.
• Durable copper waterway tubes.
• Rubber seals ensure durability and reliability in extreme
climatic conditions.
• Semi-selective black chrome surface on copper substrate
offers maximum absorption efficiency.
PRODUCT
CODE
DIMENSIONS
(mm)
APERTURE
AREA (m2)
MASS
EMPTY(kg
MASS
FULL (kg)
ENERGY TRANSFER
FLUID BY SYSTEM
Direct Indirect
SOL-
PANEL-2
2000 x 1000
x 80
2 30 32 Water Propylene
Glycol
SOL-
PANEL-2.5
2000 x 1250
x 80
2.5 40 46 Water Propylene
Glycol
2m22.5m2

Kwiksol Instruction, Installation & Warranty Manual 7
G. FEATURES OF THE SOLAR VACUUM TUBES
• Consists of two glass tubes (inner
and outer) manufactured from
Borosilicate glass.
• The outer tube is transparent
allowing light rays to pass through it
with minimum reflection.
• The inner tube is coated with a solar
selective coating, which provides
excellent solar radiation absorption.
• The tops of the two tubes are fused
together and the air extracted,
which forms a vacuum.
• To maintain the vacuum between the two tubes a barium layer is used, which
provides a clear visual indication of the vacuum status. The silver coating will turn
white if the vacuum is lost.
• The tubes are installed onto a frame and the tops of the tubes inserted into a
manifold. Both are made from anodized aluminum.
H. ROOF LOCATION OF A SOLAR SYSTEM
1. Roof location and pitch
• For optimum performance the solar flat plate collector
panel/s or solar vacuum tubes with frame, need to face
the equator (facing north for Southern Hemisphere
installations). Installation on angles of up to 45 ໍ away from
the equator do not have a major effect on the annual solar
output, consequently roof locations which face less than
45 ° away from the equator are acceptable. Solar radiance
from the sun begins at about 10.00 until 16.00 and at its
peak between 12.00 and 14.00.
• If the solar flat plate collector panel/s or solar vacuum tubes are installed with an
east facing bias, the best solar capture is achieved in the morning and if installed
with a west facing bias, in the afternoon.
• The installation location should not be subject to excessive shading from trees
and adjacent buildings and particularly between 9.00 and 15.00. Shadows are
longer in winter than in summer so a location that is free of shadows in summer
may have some shadows in winter.
• The solar flat plate collector panels or solar vacuum tubes should be installed
on a roof pitch greater than 8 ໍ and less than 30 ໍ . Where the roof pitch is greater
than 30 ໍ , the installation will require additional support to prevent it from moving
downwards when installing and after installing. If the pitch is less than 8 ໍ , the
installation will require a mounting frame to increase the pitch to above 8 ໍ .
Installations below 8 ໍ do not thermosyphon effectively and the solar flat plate
collector panel/s or vacuum tubes will not clean properly when it rains.
12 set 16 set 20 set
PERFECT
ORIENTATION
ZONE
GOOD
ORIENTATION
ZONE
GOOD
ORIENTATION
ZONE
N
20˚E
20˚W
40˚W 40˚E
S
EW

8 Kwiksol Instruction, Installation & Warranty Manual
• For a flat roof, a flat roof frame is available from Kwikot.
• Careful inspection must be carried out to ensure that the
roof can support the weight of the entire solar installation
once it is filled with water.
2. Determining the roof mounting location - Close Coupled and
Split Systems
• Once the installation position has been determined outside on the roof for a
close coupled system, measure down the roof from the right side front edge of
the front foot of the solar water heater a distance of 2030mm and make a mark
on the roof tile. This position will be the bottom of the edge of the solar flat plate
collector panel/s mounting rail or the bottom edge of the frame for the solar
vacuum tubes. This procedure is not relevant for a split system.
• A Pitch Roof Support with Panel Hooks is available from
Kwikot. The hook is fed under the roof tiles and hooked
around a strip of the roof brandering.
• Once the first hook is secure, place the bottom of solar
flat plate collector panel into the bracket and centre it
on the bracket. Repeat the process if a second solar flat
plate collector panel is to be used, using the second hook.
This procedure is not relevant for the fame for the solar
vacuum tubes.
• Where two solar flat plate collector panels are to be installed, proceed as follows
for both a close coupled and split systems:
a. Place the first solar flat plate collector panel in the mounting bracket at the left most
far end.
b. Loosely fit the two collector panel connectors to the two copper tube spigots on the
left side of the second solar flat plate collector panel.
c. Place the second solar flat plate collector panel on the second roof mounting bracket
and slide the two solar flat plate collector panels towards each other, until the two
copper tube spigots can be connected.
d. Tighten the compression nuts of the connector fittings taking care not to twist the
copper tubes of the solar flat plate collector panels. Use the correct size spanner and
ensure that the center nut is held steady whilst the compression nuts are tightened.
e. Move the two solar flat plate collector panels so that they centrally located on the
two roof mounting brackets installed beforehand.
• For a close coupled system, fit the pitch roof support above the solar flat plate
collector panel/s or frame for the solar vacuum tubes, which will hold the solar
water in place on the roof.
• Remove any labels on the glass of the solar flat plate collector panel/s, as not
doing so with affect the performance of the panel/s.

Kwiksol Instruction, Installation & Warranty Manual 9
I. INSTALLATION OF A SOLAR WATER HEATER SYSTEM
All systems must be installed in accordance with SANS 10106 and SANS 10254, which must
include a 400kPa Kwikot Pressure Control Valve, Kwikot Vacuum Breakers on both the cold
water supply and the hot water draw off, Kwikot Drain Cock and Kwikot 400kPa Safety Valve.
The solar water heater and solar flat plate collector panel/s or manifold for the solar
vacuum tubes must be connected by using 22mm copper piping, 22mm female Conex
fittings and/or 22mm copper elbows and tee-pieces and thermal pipe lagging.

10 Kwiksol Instruction, Installation & Warranty Manual
1. Thermosyphon Close Coupled System method - Direct & Indirect systems
with flat plate collector panel/s
THEMOSYPHON SPLIT SYSTEM METHOD-DIRECT &
INDIRECT SYSTEMS WITH SOLAR FLAT PLATE COLLECTOR PANEL/S

Kwiksol Instruction, Installation & Warranty Manual 11
Solar Water Heater Indirect, 400kPa
Drain Cock
Cold Water Feed to Solar Collector Panels
Multi Pressure Control Valve, 400kPa
Vacuum Breaker Cold Side
Vacuum Breaker Hot Side
Thermostatic Mixing Valve
Hot Water Feed to Taps (Balanced Pressure)
Solar Collector Panels
1
2
3
4
5
6
7
8
9
PRODUCT DESCRIPTION
Roof Mounting Brackets for Solar Collector Panel
Lever Ball Valve
Hot Water Feed to Solar Water Heater
Safety Valve, 400kPa
Safety Overflow Pipe
Pitch Roof Support for Solar Water Heater
Thermal Pipe Lagging (R1 Rating)
Electrical Cover Plate
Cold Water Feed to Taps (Balanced Pressure)
Expansion Valve 100kPa
10
11
12
13
14
15
16
17
18
19
13
56
14
12 15
10
10
11
15
1
3
16
16
9
9
HOT WATER
COLD WATER
INDIRECT
THERMOSYPHON
CLOSE COUPLED SYSTEM
INSTALLATION DIAGRAM
REAR VIEW
1
16
19
17
12
16
15
18
15
2
5
8
6
7
4
16
Once the solar flat plate collector panel/s have been installed on the
roof, the solar water heater has to be installed above the solar flat
plate collector panel/s or frame and manifold of the solar vacuum
tubes, the following procedure must be followed:
a. The feet on the solar water heater must be moved to the 30°angle
holes on the solar water heater.
b. The starting point is the solar water heater front foot. The front
c. foot must be located over a tile batten or purlin for maximum strength. The
solar water heater center should be installed evenly over rafters/trusses so as
to spread the weight over an even area of roof.
d. Once the position has been determined, mark the position. Install the pitch
roof support with solar water heater cradle available from Kwikot at the
marked position
e. Place the solar water heater into the cradle.
Geyser feet can be moved to 30°angle
Geyser feet (horizontal angle)

12 Kwiksol Instruction, Installation & Warranty Manual
2. Thermosyphon Split System method - Direct & Indirect systems with solar
flat plate collector panel/s
1
15
15
16
15
15
17
2
3
5
8
6
7
4
HOT WATER
COLD WATER
REAR VIEW
Solar Water Heater Direct, 400kPa
Drain Cock
Cold Water Feed to Solar Collector Panels
Multi Pressure Control Valve, 400kPa
Vacuum Breaker Cold Side
Vacuum Breaker Hot Side
Thermostatic Mixing Valve
Hot Water Feed to Taps (Balanced Pressure)
Solar Collector Panels
Roof Mounting Brackets for Solar Collector Panel
1
2
3
4
5
6
7
8
9
10
PRODUCT DESCRIPTION
Lever Ball Valve
Hot Water Feed to Solar Water Heater
Safety Valve, 400kPa
Safety Overflow Pipe
Thermal Pipe Lagging (R1 Rating)
Electrical Cover Plate
Cold Water Feed to Taps (Balanced Pressure)
Drip Tray
50mm Overflow from Drip Tray
11
12
13
14
15
16
17
18
19
13
8
14
12
19
19 15
18
10
10
11
1
3
15
15
9
9
56
DIRECT
THERMOSYPHON
SPLIT SYSTEM
INSTALLATION DIAGRAM

Kwiksol Instruction, Installation & Warranty Manual 13
Solar Water Heater Indirect, 400kPa
Drain Cock
Cold Water Feed to Solar Collector Panels
Multi Pressure Control Valve, 400kPa
Vacuum Breaker Cold Side
Vacuum Breaker Hot Side
Thermostatic Mixing Valve
Hot Water Feed to Taps (Balanced Pressure)
Solar Collector Panels
Roof Mounting Brackets for Solar Collector Panel
1
2
3
4
5
6
7
8
9
10
PRODUCT DESCRIPTION
Lever Ball Valve
Hot Water Feed to Solar Water Heater
Safety Valve, 400kPa
Safety Overflow Pipe
Thermal Pipe Lagging (R1 Rating)
Electrical Cover Plate
Cold Water Feed to Taps (Balanced Pressure)
Drip Tray
50mm Overflow from Drip Tray
Expansion Valve 100kPa
11
12
13
14
15
16
17
18
19
20
HOT WATER
COLD WATER
REAR VIEW
1
15
21
16
12
15
17
2
5
8
6
7
4
15
13
56
14
14 12
10
10
11
15
1
3
20
15
19
18
9
9
INDIRECT
THERMOSYPHON
SPLIT SYSTEM
INSTALLATION DIAGRAM
Once the solar flat plate collector panel/s have been installed on the roof, the solar water
heater has to be installed inside the roof at a higher plane to the solar flat plate collector
panel/s outside on the roof, the following process must be followed:
a. A Kwikot geyser drip tray which complies to SANS 11848 must be placed on the tie beams
over a load-bearing wall and supported by timber that complies with at least Grade 5 SANS
1783-2 and of a size at least 120mm x 30mm spaced not more than 500mm apart.
b. The solar water heater is to be placed inside the geyser drip tray.

14 Kwiksol Instruction, Installation & Warranty Manual
3. Split Pump Circulation method - Direct & Indirect Systems with solar flat
collector panel/s
SPLIT PUMP CIRCULATION METHOD-DIRECT & INDIRECT SYSTEMS
WITH SOLAR FLAT PLATE COLLECTOR PANEL/S
HOT WATER
COLD WATER
13
13
8
14
12
11
10
3
4
1
9
6
6
5
2
7
DIRECT
PUMP CIRCULATION
SYSTEM INSTALLATION
DIAGRAM
13
13
13 13
8
14
12
11
10
3
4
15
9
6
6
5
2
INDIRECT
PUMP CIRCULATION
SYSTEM INSTALLATION
DIAGRAM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Solar Water Heater Direct, 400kPa
Multi Pressure Control Valve, 400kPa
Cold Water Feed to Solar Collector Panels
Electrical Circulating Pump
Hot Water Feed to Solar Water Heater
Solar Collector Panels
Auto Vent Valve
Vacuum Breaker Cold Side
Vacuum Breaker Hot Side
Thermal Pipe Lagging
Differential Thermostat
Safety Valve, 400kPa
Gate Valve
Drip Tray
Solar Water Heater Indirect, 400kPa
PRODUCT DESCRIPTION
Once the solar flat plate collector panel/s have been installed on the roof, the solar water
heater has to be installed inside the roof, the following process must be followed:
a. A Kwikot geyser drip tray which complies to SANS 11848 must be placed on the tie beams
over a load-bearing wall and supported by timber that complies with at least Grade 5 SANS
1783-2 and of a size at least 120mm x 30mm spaced not more than 500mm apart.
b. The solar water heater is to be placed inside the geyser drip tray.

Kwiksol Instruction, Installation & Warranty Manual 15
4. Close Coupled Thermosyphon method - Direct system with solar vacuum
tubes
CLOSE COUPLED THEMOSYPHON METHOD-
DIRECT SYSTEM WITH SOLAR VACUUM TUBES
1
16
16
17
16
16
15
18
15
2
3
5
8
6
7
4
HOT WATER
COLD WATER
REAR VIEW
PRODUCT DESCRIPTION
113
8
14
12
15
15
10
11
316
16
9
56
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Solar Water Heater Direct 400kPa
Kwikot Drain Cock
Cold Water Feed to Vacuum Tube Manifold
Multi Pressure Control Valve 400kPa
Vacuum Breaker Cold Side
Vacuum Breaker Hot Side
Thermostatic Mixing Valve
Hot Water Feed to Taps (Balanced Pressure)
Solar Vacuum Tubes
Solar Vacuum Tube Frame
Solar Vacuum Tube Manifold
Hot Water Feed to Solar Water Heater
Safety Valve 400kPa
Safety Overflow Pipe
Pitch Roof Support for Solar Water Heater
Thermal Pipe Lagging
Electric Cover Plate
Cold Water Feed to Taps (Balanced Pressure)
DIRECT
THERMOSYPHON SYSTEM
INSTALLATION DIAGRAM

16 Kwiksol Instruction, Installation & Warranty Manual
Once the solar vacuum tube frame and manifold have
been installed on the roof, the solar water heater has to be
installed above the manifold, the following procedure must
be followed:
a. The feet on the solar water heater must be moved to the
30ໍ angle holes on the solar water heater.
b. The starting point is the solar water heater front foot.
The front foot must be located over a tile batten or purlin
for maximum strength. The solar water center should be
installed evenly over rafters/trusses so as to spread the
weight over an even area of roof.
c. Once the position has been determined, mark the position.
Install the pitch roof support with solar water heater cradle
available from Kwikot at the marked position.
d. Place the solar water heater into the cradle.
5. Important Installation Information
a. In an Indirect system installation, the solar water heater must be fitted with an
Expansion Relief Valve 100kPa on the left top side of the front end dome.
b. All cold and hot water pipe connections to and from the solar water heater, must have
at least 1m of thermal lagging installed on the pipe work.
c. The copper discharge pipes connected to the Expansion Control Valve 100kPa and on
the Safety Valve on the solar water heater in a close coupled system installation, must
face downwards (vertical) towards the roof. In a split system, these pipes must be lead
to the exterior of the building or roof, with a continuous downward fall and the outlets
being left open to the atmosphere.
Geyser feet can be moved to 30°angle
Geyser feet (horizontal angle)

Kwiksol Instruction, Installation & Warranty Manual 17
J. FILLING A SOLAR SYSTEM
a. Direct System – Thermosyphon Circulation Method
• Do not switch ‘ON’ the electrical supply to the solar water heater until the system has
been filled with water.
• Open the cold water supply to the solar water heater and the entire system will self-
fill. To ensure that all air is out of the system, open the lever ball valve at the bottom
on the solar flat plate collector panel/s and allow the water to flow out for about 15
seconds. Close the lever ball valve.
• Where solar vacuum tubes are used, the manifold at the top of the tubes will fill up.
• Check the entire system for water leaks and shut ‘OFF’ the water supply where leaks
need to be repaired.
• Once leaks have been repaired, the water supply can be opened to refill the system.
Open a hot tap to allow air to escape until the airbursts have stopped and the water
flows freely from the tap. Close the tap.
b. Indirect System – Thermosyphon Circulation Method
• A dilution of Propylene Glycol and water has to be used in this system.
• The dilution ratio’s as follows:
• Ambient temperatures in winter 5ໍC to -8ໍC, one part Propylene Glycol to three
parts water i.e. Propylene Glycol 1lt with 3lts of water.
• Ambient temperatures in winter -9ໍ to -16ໍC, one part Propylene glycol to two
parts water i.e. Propylene Glycol 1lt with 2lts of water.
• Do not switch ‘ON’ the electrical supply to the solar water heater until the system
has been filled with water.
• Cover the solar flat plate collector panel/s to prevent pressure variation due to
thermal activity in the solar flat plate collector panel/s.
• Open the cold water supply to the solar water heater and check for any leaks.
• Remove the 100kPa Expansion Relief Valve from the socket on the front end of
the solar water heater.
• Connect a 15mm (½”) flexible hose to the lever ball valve in the open position, at
the bottom of the solar flat plate collector panel.
• With the use of a funnel, pour 1lt bottle of Propylene Glycol into the funnel. Using
the same bottle, add two or three bottles of tap water, dependent on the extreme
ambient temperatures in the area during winter. If the poured diluted liquid does
not flow from the open socket where the Expansion Relief Valve is installed,
repeat the process until the liquid flows from the socket.

18 Kwiksol Instruction, Installation & Warranty Manual
LEVER
BALL
VALVE
HOSE
PIPE
FUNNEL
EXPANSION
RELIEF VALVE
• Once filled, close the lever ball valve on the solar flat plate collector panel and
remove the hose and funnel.
• Re-fit the 100kPa Expansion valve.
• Check all connections for leaks.
• Switch ‘ON’ the electrical supply to the solar water heater and the system is now
operational.
K. DRAINING AN INDIRECT SOLAR SYSTEM
The dilution of Propylene Glycol and water must be drained from the system and replaced
every three years.
• Connect a 15mm (½”) flexible hose to the lever ball valve at the bottom of the
solar flat plate collector panel.
• Hold the other end of the hose in a bucket or any other suitable container.
• Open the lever ball valve and the heat transfer fluid will flow in to the bucket until
the system is empty.
• It would be advisable to measure how much heat transfer fluid emptied out in the
bucket, as this will provide a good indication of how much has to be replaced into
the system.
• Never allow the heat transfer fluid to empty out onto a roof or gutter that
collects rain water or feeds a water storage tank.
L. GENERAL MAINTENANCE OF THE SOLAR SYSTEM - FOR THE
HOMEOWNER
• During the summer period, the solar flat plate collector panel/s and solar vacuum
tubes will be kept clean by normal rainfall. In winter and especially in the inland
areas where a lot of dust build up occurs, the solar flat plate collector panel/s
and solar vacuum tubes can be hosed down. A soft broom can be used with a
regular household window cleaning detergent to remove bird droppings. Do not
press heavily on the broom. If a detergent is used, hose down afterwards so no
detergent residue remains on the glass.
• The thermal lagging on the exterior pipe work should be checked for degradation
every year, particularly before the winter season when heat loss is at its greatest.

Kwiksol Instruction, Installation & Warranty Manual 19
• Always be observant to any leaks that may arise over time in the system and
repair these as soon as possible.
• Replace the heat transfer fluid in the Indirect System every three years.
M. SAFETY PRECAUTIONS & EMERGENCY SHUTDOWN
PROCEDURE - FOR THE HOMEOWNER
1. Safety Precautions
• Do not tamper with any part of the system installation.
• Do not touch the hot supply pipe from the solar flat plate collector panel/s or
the manifold for the solar vacuum tubes, as this pipe can get extremely hot,
particularly during the summer.
• The draining and replacing of the heat transfer fluid in an Indirect System must
only be carried out by someone who has thorough knowledge of solar systems.
• Storage of Glycol Propylene must be placed in a place not accessible to children
and pets.
2. Emergency Shutdown Procedure
In the event of a problem arising with the solar system, carry out the following
procedure:
• Switch ‘OFF’ the Geyser/Solar water Heater Switch at the electrical distribution
board.
• Any evidence of a water leak from any part of the system, except occasional
dripping from the overflow pipe on the Safety Valve, shut off the water supply
to the solar water heater at either a shut off valve at or before the solar water
heater, or at the water supply mains.
• Any evidence of a heat transfer fluid leak in any part of an Indirect System, try
and capture or contain the leaking fluid if possible.
• If the solar system installation is still under the installation warranty period
offered by the installer, contact the installer.
N. WARRANTIES – FOR THE HOMEOWNER
It is important to note that the warranty on the solar system installation is separate to that
of Kwikot’s warranty on certain specified solar system products and components:
1. Installer Warranty
• This is the warranty period offered by the installer of the solar system and covers
the installation of the system and the working of the solar system for the period
specified.
• Water leaks, heat transfer liquid leaks, system faults and incorrect installation of
the system resulting in the system not operating or operating properly, must be
brought to the attention of the installer.
2. Product Warranty
Kwikot (Pty) Ltd warrants that its solar water heaters, solar flat plate collector panels,
solar vacuum tubes and manifold, drain cock and safety valve, Multi or Mono pressure

20 Kwiksol Instruction, Installation & Warranty Manual
control valve, thermostatic mixing valve, vacuum breakers and lever ball valves, are free
from manufacturing defects. This is the only warranty given by Kwikot in respect of these
products. Kwikot gives no other warranties or representations, whether expressed or
implied. No amendments or additions to the warranty shall be binding on Kwikot.
Kwikot makes no warranties representations in respect of the installation of the solar
system. Claims in respect of the installation of the solar system must be referred to the
applicable installer, who shall be solely liable under any installation warranty given.
The warranty covers the specified products only and does not cover any part of the
installation, which may become damaged or faulty as a consequence of the failure of the
specified defected Kwikot product.
The period during which the warranty is calculated is from the date of installation, of the
original product, provided that documented proof of the date of installation is furnished.
If the installation date is not furnished or cannot be proved, the date of manufacture, as
determined by Kwikot from information on the serial plate where applicable, shall be
deemed to be the commencement date of the warranty period.
Where Kwikot supplies an auxiliary component from another manufacturer, that
manufacturer’s warranty period and conditions will apply.
If Kwikot carries out repairs or replacements, the warranty period will not start afresh or be
extended, irrespective of how many repairs or replacements are carried out. The warranty
period will still be calculated from the date of the original installation or manufacture date
of the original product, as the case may be. Components removed during the warranty
repairs, will remain the property of Kwikot.
Warranties are applicable only in South Africa, Namibia, Botswana, Swaziland and Lesotho and
subject to the solar system being used for water, which is of a quality equivalent to the water
supplied by authorities in Metropolitan areas in South Africa.
A warranty will only be honoured if:
• The applicable product warranty period is still in force.
• The solar system is installed, used and maintained in accordance with Kwikot’s
specifications and instructions and relevant SANS 10254 and SANS 10106
standards.
• All products included in the installation to comply with SANS approvals.
• The solar system has been used for water, which meets Kwikot’s quality
specifications.
The warranty does not cover:
• Element burn out through commissioning without water in the solar water heater.
• Burnouts due to loose electrical connections.
• Fair wear and tear.
• Misuse, abuse or negligent use of the solar system.