question_icon
LATEST NEWS:

KZN Solar now offers direct sales on all solar products / components. This allows you to source a trusted third party service provider for installation if you so desire. We deliver to your door, and will provide the instructions / support necessary to make sure the product is installed and configured to specification. For more infomation please contact us on 086 111 1203 or online.

KWIKOT > SOLAR WATER HEATERS > INDIRECT SYSTEM

Description
Designed to be installed in locations where frost occurs and where the ambient temperature falls below 5ยบ C and where the water quality is poor (more than 600ppm Total Dissolved Solids/Minerals).

The potable water in the solar water heater remains in the inner tank. Propylene Glycol diluted with water is used as the heat transfer fluid and is held in a separate chamber within the solar water heater and circulates through the solar collector panels or manifold of any array of solar vacuum tubes installed outside on the roof, transferring solar energy. Propylene Glycol does not freeze and therefore protects the solar collector panel/s from freezing and damage.

The solar water heater indirect system can be installed as a Split System using pumped or thermo-syphon circulating methods, or as a Close Coupled System using a thermosphon circulation method.

The solar water heaters indirect system, also work as a conventional electric water heater and are fitted with a Kwikot Solar Element and Kwikot Kwiktherm Thermostat. The element is designed to heat half the volume of water electrically, leaving the balance to be heated by solar energy by means of the solar collector panel/s or solar vacuum tubes.



Warranty
  • 5 Years on the inner cylinder from date of installation or alternatively from date of manufacture, if the installation date cannot be proven and subject to water conditions equivalent to main metropolitan supply authorities.

  • 2 Years on the Kwikot Safety Valve, Drain Cock and Expansion Relief Valve 100kPa

  • 1 Year on the electrical heating element, thermostat, flange assembly plate and gasket.



Specifications
SABS 1307 Approved
Operating Pressure:
Design:
Sizes:
Supplied with:

Installation Configuration:
Water Connections:
Solar Water Heater Connections:

Up to 400kPa
Round with galvanised casing
100lt, 150lt, 200lt, 250lt
Solar Element 2kW, T105 20Amp Thermostat, Safety Valve and Drain Cock
Horizontal
BSP Male 3/4" (20mm)
BSP Male 3/4" (20mm)

CODE SIZE
(LITRES)
DIMENSIONS
(mm)
MASS EMPTY
(KG)
LOAD
(kW)
SOL-100-IND 100 800 x 590 38 2
SOL-150-IND 150 1070 x 590 48 2
SOL-200-IND 200 1360 x 590 62 2
SOL-250-IND 250 1650 x 590 81 2



Installation
 
SOLAR WATER
HEATER INDIRECT
NUMBER OF SOLAR
COLLECTOR PANELS
NUMBER OF SOLAR
VACUUM TUBES
100lt 1 x 1.5m Panel 12 (1 x 12)
150lt 1 x 2m Panel 16 (2 x 8)
200lt 1 x 2.5m Panel 20 (2 x 10)
250lt 2 x 2.5m Panels 24 (2 x 12)



Installation Specifications
Install in compliance with SANS 10106 Solar Water Heater Installation Specifications.




Pump Circulation - Split System
1 Solar Water Heater indirect 8 Thermal Pipe Cladding
2 Multi Pressure Control Valve 400kPa 9 Differential Thermostat
3 Heat Transfer Fluid Feed to Solar Collector Panels 10 Kwikot Safety Valve 400kPa
4 Electrical Circulating Pump 11 Expansion Relief Valve 100kPa
5 Heat Transfer Fluid Feed to Solar Water Heater 12 Gate Valve
6 Solar Collector Panels 13 Kwikot Drip Tray
7 Kwikot Vacuum Breaker    

 



Thermosyphon Circulation - Split and Close Coupled Systems
1 Solar Water Heater Indirect 6 Kwikot Vacuum Breaker
2 Multi Pressure Control Valve 400kPa 7 Thermal Pipe Cladding
3 Heat Transfer Fuild Feed to Solar Collector Panels 8 Kwikot Safety Valve 400kPa
4 Heat Transfer Fuild Feed to Solar Water Heater 9 Expansion Relief Valve 100kPa
5 Solar Collector Panels 10 Kwikot Drip Tray
(for Split System Installation)