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INSTALLATION 

Register your product

4

 | SOL  29  Premium 

www.stiebel-eltron-usa.com

3.  Register your product

You must register this product within 90 days of 
purchase on our web site in order to activate the 
standard warranty or to be eligible for any extended 
warranty. Go to our web site at 

www.stiebel-eltron-usa.com

 and click on register your 

product.

Before beginning the registration process, we suggest that you 
gather the necessary information which will be as follows:

Model (Example: SOL 29 Premium S): 

Serial number (listed after “Nr.”): 

Place of Purchase: 

Purchase date: 

First & last name: 

Email address: 

Physical address: 

Phone number: 

If you have any questions concerning the registration process or 
warranty options, please contact Stiebel Eltron USA directly at 
(800)-582-8423.

4.  General product information

The SOL 29 Premium S & SOL 29 Premium W collectors are solar 
thermal collectors designed for closed-loop operation. The absorber 
plate is a four-port serpentine style designed for a single array with 
up to 10 collectors connected together.

The collector converts sunlight into heat. Light penetrates the glass 
cover, which is pre-stressed, highly transparent single pane safety 
glass. As the light strikes the absorber plate, it is converted to heat. 
The highly selective coating of the absorber and the thermal insula-
tion on the back of the absorber keep heat loss to the environment 
to a minimum.

The thermal energy produced by the collector is transported by the 
heat transfer medium (solar loop fl uid), via a circulating pump, to 
the storage tank(s).

The inside of the collector can fog up under certain operating condi-
tions (e.g., large tank with low temperature compared to the outdoor 
temperature and/or high relative humidity).

INSTALLATION

5. Safety

The installation of solar thermal collectors typically involves installa-
tion on a roof, or otherwise elevated structure. Refer to all relevant 
safety codes to ensure that installation can be completed without 
injury.

After installation and commissioning, the collectors will be fi lled 
with fl uid. During the day, the fl uid will become hot due to solar 
radiation. Venting the collectors, or performing other working tasks 
on the collectors while it is hot may cause you to come into cont-
act with hot solar fl uid, which is a scalding risk. Always cover the 
collectors with an opaque material if they are fi lled with fl uid and 
being worked on.

 WARNING:

 Risk of scalding

To prevent the solar fl uid from boiling in the collectors, 
the collectrors should be covered with an opaque mate-
rial while working on the system. 

!

Material losses:
To protect the system against frost and corrosion, fi ll the
solar system exclusively with the recommended propylene 
glycol mixture.

5.1 

Regulations, codes, and standards

 NOTE :

Observe all federal, state, and local codes when per-
forming electrical, plumbing, or roof work during instal-
lation.

6. Installation

6.1 

Planning and installation

!

Material losses:
Solar collectors, mounting equipment, and solar heating 
fl uid will add weight onto a roof. Have a licensed contractor 
inspect the roof structure to ensure that the installation 
location has suffi cient integrity to hold all necessary com-
ponents, with expected snow and winds loads included.

The planned site for the collectors should have maximum sun expo-
sure for the most amount of time as possible. The location should 
avoid shading from trees or other objects. 

Ground-mount installations have a similar installation procedure  to 
roof installations, other than the method of securing the array to the 
ground. These instructions are for a roof installation, but a ground-
mount installation is very similar. Contact Stiebel Eltron customer 
support for more information about a ground-mount installation.

Summary of Contents for 290016

Page 1: ...OPERATION AND INSTALLATION Solar Thermal Collector SOL 29 Premium S SOL 29 Premium W...

Page 2: ...__________________________________________ 3 2 4 Emergency shut down_____________________________________________ 3 2 5 Licenses certi cates________________________________________________ 3 3 Registe...

Page 3: ...WARNING Scalding Setting the maximum tank temperature higher than 140 F at the control unit is permissible only with a thermostatically controlled DHW mixing valve Other wise there can be a risk of s...

Page 4: ...installation of solar thermal collectors typically involves installa tion on a roof or otherwise elevated structure Refer to all relevant safety codes to ensure that installation can be completed with...

Page 5: ...e table below for the rafters that will need to be secured to This is a minimum speci cation It may be possible or necessary to add more mounting racks per array if needed to spread out the roof load...

Page 6: ...section 6 4 1 on page 5 Uproof 2 1 1 Mounting point spacing between rafters 2 Front and back mounting spacing Repeat the mounting process for all ashing kits in the array Pay attention to vertical var...

Page 7: ...ear one of the four con nection points This sensor well must be oriented so that a sensor can measure the temperature of the solar uid as it exits the array Do not orient the collector so that the sen...

Page 8: ...nectors completely into the collector connection Do this for both connector ports on the side where the next collector will be installed Sit the next collector into the frames and slide the inter pane...

Page 9: ...the hot uid exits the collector array install a threaded connector in the top collector connection and a plug connector in the bottom collector connection WARNING Burns Once the collectors are install...

Page 10: ...ave been connected it will be necessary to pressure test the system to detect leaks before lling the solar loop with heat transfer uid Propylene glycol solutions can leak from much smaller gaps than c...

Page 11: ...tions on how to ll ush charge the solar loop consult the pump station manual 8 Maintenance care Specialists should carry out an annual inspection of the solar he ating system to ensure proper function...

Page 12: ...s Glass thickness 1 8 3 mm Glass transmittance 89 Thermal insulation 2 50 8 mm mineral wool Collector connection 1 BSPP thread ships with adapters Max idle temperature 345 F 174 C Min operating pressu...

Page 13: ...pylene Glycol 94 Weight performance additives 6 Specific gravity 60 F 15 C 1 053 1 062 pH of Solution 9 5 10 5 Reserve alkalinity 15 0 ml Vapor pressure over operating range 2 2 mmHg Flash point 219 F...

Page 14: ...Collectors Collectors number type Collector surface area System speci cations System height Pipe run length Ventilation Solar uid type concentration Max ow rate Pump station Pump setting low med high...

Page 15: ...7 to propylene glycol ph levels above 10 or below 8 8 to periods of stagnation in excess of 60 days 9 to excessive pressure 10 to clouding or similar occurrence resulting from the normal intrusion of...

Page 16: ...chnological advancement speci cations may change without notice Stand 8643 STIEBEL ELTRON Inc 17 West Street West Hat eld MA Tel 0413 247 3380 Fax 0413 247 3369 info stiebel eltron usa com www stiebel...

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