Solar infra systems Sis25m 1848 User manual

Solar Infra Systems Int. Ltd Issue 10/1/2013

Radiative

Conductive

Total Compared to

Heat Heat Heat Single Pane

Window Construction Loss Loss Loss Heat Loss

(Btu/hr/ft2) (Btu/hr/ft2) (Btu/hr/ft2)

Single Pan

Clear 35 21 56 ----

Double-Pan

Clear 21 13 34 65%

Double-Pan

Low-E 515 20 36%

What is an Air Solar Heater

This SIS air solar heater uses the sun’s

solar energy to heat air through a window in

the home, apartment, cottage, boat, RV, and

circulate this heated air in the room. This is

not a solar PV panel or solar water heater.

The heater is hung or placed in a south

facing closed window inside the room or

space to be heated.

This SIS model air solar heater heats air.

It is like an electric room convection air space

heater except it is operated by the sun’s solar

energy. Hang or set it in a sun facing window,

or side-ways, or even upside down, and it will

maintain heat in a large room or area in the

home. The heating capacity is equivalent to a

150 to 500 watt electric heater, depending on

the daytime sun and cloud cover.

The model air solar heater is also

transparent and will still let most of the

window sunlight into the room.

Sunlight and a PV panel also operate a

fan on the heater. The fan draws the room air

into the heater and then pulls the air through

metal solar energy collectors heated by the

sun. The solar heated air is recirculated back

into the room. The fan has a speed control so

the air exchange in the room can be set,

usually to 1 to 1-1/2 hours, at up to 75 cubic

feet per minute.

Patented technology and

international patents pending.

IMPORTANT

This SIS solar air

heater is designed for

interior installation behind

a single pane window for

best efficiency. Double

pane, low-E, argon, and

triple pane will reduce this

efficiency to less than 40%

to 65%. .

The SIS Solar Air

Heater, mounted inside

the room, behind the

window glass, reverses

this heat loss, collects the solar heat coming

through the glass, and heats the air in the

room. Ordinary single glazing works best with

an interior Air Solar Heater.

SIS has a range of exterior mount models

that are not affected by

glass obstruction and are

capable of heating an

entire house. For more

information call 1 855 535

2056 or email us

at info@solarinfrasystems.

com

Also the perfect answer to

heating sheds, garages,

cottages, and stored boats and

RV’s where there is limited or

no electricity.

Solar-Infra Systems International Ltd

209-19138 26th Avenue, Surrey, BC, V3S

3V7 Canada. Toll Free 1-855-535-2056

T-604-535-2056 F-604-535-0681

www.solarinfrasystems.com

OPERATING INSTRUCTIONS

SOLAR THERMAL AIR HEATER

Consumer Model SIS25M 1848

Issue 9/15/2013e

The SIS Air Solar Heater Installation

1. Hang, or set on the sill, in a south facing window. The window should be

ordinary single glazing.

2. Large glass areas, such as solariums, can have too much heat loss through the

glass to the air outside, for this size of SIS air solar heater. It may require more

than one heater or a larger model. Please contact

us at

info@solarinfrasystems.com and we will help you size the solar heating.

3. The Solar Heater can be mounted between the window and a venetian blind.

Make sure the blind is open enough to allow fan recirculation into the room.

4. Rooms and home areas usually are planned for 1 to 2 air changes every three

hours.

5. The fan capacity is 75 cubic feet of air per minute. Divide this into the volume of

the room or heated area and this will show the number of air changes per hour.

6. For example:

Air changes = Room 20ft x 15ft x 10 ft high = 3000 cubic feet volume.

Air Changes= 3000 cubic ft = .66 air changes per hour

75 cu ft/min x 60 min/hr (~2 air changes every 3 hours)

7. Cloudy, low sunlight, or rain conditions may not produce enough Photovoltaic

Panel energy on the front of the heater to operate the fan, even though there

may be enough solar energy for the heater to add 3-4 degrees to the room

temperature

8. WHAT IS YOUR PAYBACK: We use a NASA/Government program that

calculates the energy savings and heating output in most locations in the world.

Email your location, home area, electricity cost per kWh, heating fuel and unit

cost, and we will send you the time payback estimate on the savings in energy

by using an air solar heater or fill in form at www.solarinfrasystems.com

Don’t forget to fill out the

Warranty Card and the Solar

Energy Payback Estimator

Solar Infra Systems Int. Ltd Issue 10/1/2013

Model SIS 25M 1848

SPECIFICATIONS

Specifications subject to change without notice.

Dimensions

Sun Orientation

True South

US Metric

Peak Efficiency Ave 80% 80%

Ave Max Daily Power

Output

950 btu/hr/sqft 2.99 MWhr/m2

Window Mounting

Single Glaze Single Glaze

Heater Mounting Tilt

in Window

Vertical (90°) Vertical (90°)

Azimuth (Direction

facing Sun)

0° (Due South) 0° (Due South)

Ave Total Annual

Solar Radiation

Tilted (90°) 12 mon

3.7mbtu/sqft 1,090 MWh/m2

Total Annual Heating

Delivered (9 mon)

5.11mbtu 1.5 MWhr

Air Flow Range 50-75 cfm 85-127 m3/hr

Max Air Pressure .093inH2O 2.37mmH2O

Noise Level 32.95db 32.95db

Ave Temperature

Increase

Sept-May

21.1 °F 11.7°C

Max Air Temperature

Increase

122°F 50°C

Solar Collector Infra

Red Absorption

95% 95%

Solar InfraRed

Transmission

Polycarbonate Panel

90% 90%

Number of Staged

Solar Collectors

27 27

Staged Collector

Projected Area

61.35sqft 5.70m2

Arperture 4.97sqft .462 m2

PV Panel 7W 14vdc 7W 14vdc

GHG Carbon Saving

0.3 TCO2/yr 0.3 tCO2/yr

Collector Material aluminum aluminum

Plastic Panel

Materials

UL94v-0 UL94v-0

Heater Weight 11.24lbs 5.1kg

1. Based on 80%of solarradiation on 90°tilted heater (vertical) behind

single glazew indow at49°Nlattitude. 9 months of year (Sept toMay)

2. RETScreen data (NRCan/CanmetENERGY) (NASA solar data)

3. Retscreen 49°Nlatitude -123.1°Elongitude.

4. Underw riter'sLaboratories -self extinguishing.Conforms tow indow and

wallcoveringbuildingstds.

20deg 20deg

South (or North in the southern

hemisphere) facing covers 20 degrees

on both sides of a true south. More east

catches morning solar and west

catches afternoon solar.

Watch for roof eves that overhang

and shade the window and heater as

well as trees and buildings that block

the sun’s path.

WARRANTY TERMS

If a defect arising solely from faulty hardware, materials or workmanship appears under proper use of this equipment:

For defects in hardware, materials and workmanship, within a period of 12 months from the date of purchase, Solar Infra Systems will repair the defect, or at its option, replace the defective

part or parts.

The main exclusions from the warranty are if the equipment has been:

1. Neglected, mishandled or inappropriately used; or

2. Modified or altered in any way except with the prior approval of Solar Infra Systems.

Solar Infra Systems is not liable for any consequential loss.

1 Solar Infra Systems is not liable to the Buyer for any defect unless the Buyer immediately gives Solar Infra Systems notice in writing or email of the alleged defect with full

particulars of the operating conditions under which it became apparent and returns this equipment, or relevant part, shipping paid to Solar Infra Systems.

2 Any items returned to Solar Infra Systems are at Buyer’s risk. Repaired or replacement items will be despatched shipping paid to the address requested by Buyer.