STIEBEL ELTRON SunWarmth CIR 400-2 O - Manual (Page 6)

6 |SUNWARMTH ™ CIR INFRARED HEATER WWW.STIEBEL-ELTRON-USA.COM
INSTALLATION
SAFETY
- Do not use any abrasive or caustic cleaning agents.
- Never immerse the appliance in water! Danger to life!
- If a heater is exposed to water beyond the intended use of
outdoor models, have a qualified electrician inspect and repair
the heater prior to use.
- As part of regular maintenance, we recommend also having the
control components checked. The safety and control components
should be checked by a contractor no more than ten years after
commissioning.
7. Safety
Only qualified contractors should carry out installation,
commissioning, maintenance and repair of the appliance.
7.1 General safety instructions
We guarantee trouble-free function and operational reliability
only if the original accessories and spare parts intended for the
appliance are used.
DANGER Electrocution
If you mount the appliance on the wall, do so in such
a way that control equipment cannot be touched by a
person in the bath or shower.
!
CAUTION
— Observe the minimum clearances to adjacent
object surfaces (for minimum clearances see
section 9.5, pg. 8).
— Never install the appliance directly below a wall
socket.
— Ensure that the power cable is not in contact with
any appliance components.
7.2 Instructions, standards and regulations
Observe all applicable national and regional regulations
and instructions.
8. Appliance description
8.1 Standard delivery
— Heater unit
— Wall mounting bracket including fixing screws, locking
washers and nut
9. Installation
9.1 Project design considerations & guidelines
NOTE: All CIR Infrared Heaters must be installed on a
timer or timer switch.
NOTE: Refer to section 9.5, pg. 8 regarding the
minimum required clearances.
The size and quantity of heaters (amount of heat input) required
over an area to provide comfort is affected by the following factors:
9.1.1 General:
— Amount of air movement in the area: “wind chill” requires
additional heat input
INSTALLATION
— Provide wind breaks wherever possible
— “Spot heating” comfort is most effective if people are
heated from at least two sides
— Available mounting height for heaters at the project site
9.1.2 Indoor application:
— “Space heat” the entire structure (accurate heat loss
calculation required. For assistance contact Stiebel Eltron at
800-582-8423 or [email protected]), or
— “Spot heat” only part of a cold indoor area
— The activity level of the people: seated at rest, hard physical
labor, etc.
9.1.3 Outdoor application:
NOTE: MODEL “CIR 150-1 I” IS FOR INDOOR USE ONLY!
— Any area heated outdoors is “spot heat”
— Models “CIR 150-1 O”, “CIR 200-2 O”, and “CIR 400-2 O” are
for indoor or outdoor use
» Desired temperature rise:
— In what seasons is comfort required and what is the outside
design temperature?
— Then what temperature rise is desired for comfort? (10°,
15°, 20°, 25°?)
» Calculate the required input to get the desired average
temperature rise:
Input Required per Area per Degree Comfort Temperature Rise
Heat density
per degree F
W/(ft
2 )/°F
Heat density
per degree C
W/(m
2 )/°C
Outdoor heating
(up to 10 mph wind)
2
40
Indoor spot heating
(protected area, low
air movement)
0.75
14
» Input formula = Site Length x Site Width x Temperature Rise x
Heat Density per Degree
Example:
— Outdoor patio: 30 feet long by 10 feet wide
— Desired temperature rise: 20°F (average over the area)
— 30 x 10 x 20 x 2 = 12,000 Watts total input required
Compare the values of the available mounting height and area
dimensions at the project site to the recommended mounting
heights, length and width of coverage area, and typical average
heat distribution in section 9.2 (page 6).
Layout:
— Space the heaters uniformly around the perimeter (and if
required, in the center or throughout the area) to provide
sufficient heat density to accomplish the desired temperature
rise or spot heat only specific locations within the area.
— Provide heat from at least two sides wherever possible
NOTE: The design information presented here is
intended as a guideline. The accuracy of determining
or estimating all factors above will affect performance
and satisfaction. Air movement in particular will
affect comfort.