Solar Thermal Information

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Sensor protection

SP10

Function

Product range

Code NA15006 SP10 sensor protection device for protecting collector sensor and controller from lightning or other over-voltages

Technical specifications

CALEFFI

lower part of

the housing

upper part of

the housing

Electrical connection

fig. 1

1 2 3 4

fig. 2

Note: If the connecting box is used outdoors, it is recommended to pierce a condensation

water hole at the bottom after the device has been installed.

Dimensions

1/2”

3/8”

2 5/8”

1 1/2

Code

NA15006

Weight (lb)

0.3

Mounting

64,07 mm

67,79 mm

111 mm

40 mm

34 mm

The SP10 sensor protection device should be used to protect the sensitive

collector temperature sensor against external over-voltages. In the case of

thunderstorms, lightning strikes can destroy the collector sensor and differential

temperature controller. The SP10 protector diodes limit these over-voltages and

maintains a stable noise-free connection between sensor and controller.

The best way to protect the collector sensor is to install the SP10 device close

to the collector sensor. The SP10 is designed as a weather-resistant connecting

terminal block in a dripping water-protected housing which can be used

outdoors. Soft thermoplastic elastomers in the bottom of the lower housing

protects the sensor cables and allow easy installation.

For optimum protection against moisture, the SP10 sensor protection

device must be ﬁtted vertically. Unscrew the housing screw and

remove the upper part of the housing. Mark the fastening points on

vertical surface and drill. Attach the lower part of the housing using the

screws. Install the upper part of the housing onto the lower part and

attach housing screw.

Pierce the lower housing with a pointed object (ﬁg.1). Insert the cables

into the holes and pull them slightly back, such that the edge of the

material is slightly turned to the outside. Thus the device is protected

against moisture. Connect the sensor cable to the terminals 1 and 2

with either polarity (ﬁg. 2). Connect the cable which leads to the

controller at the terminals 3 and 4 and to the corresponding controller

terminals.

Upper housing: ASA thermoplastic

Lower housing: thermoplastic elastomers

Protection type: NEMA 4 (IP 65)

Ambient temperature: -15 ... 160ºF (-25 ... +70ºC)

Mounting: vertically

Agency approvals CE

CALEFFI

Flexible stainless steel insulated piping

SolarFlex

NA3500

Function

SolarFlex is a system solution with pre-insulated flow and return

pipes for solar hot water heating systems used to connect the solar

collector with the storage tank in an easy, quick and professional

way. It optimizes thermal efficiency of the entire system. The pre-

insulation solution of two flexible stainless steel pipes inside two

EPDM closed cell insulation and the integrated sensor cable, saves

time and reduces cost of installation. SolarFlex is packaged in a 50-

foot continuous coil with a complete range of accessories to ensure

a smoothand secure installation.

General

• Easy to install, enabling pipes to be run without using a torch

in confined spaces or on the roof.

• Ensures a leak-free installation.

• Easy to separate, without damaging the tubes.

• External copolymer foil protects against UV radiation

and mechanical strain.

• Identification mark for flow and return.

• Meets highest requirements for modern solar heating systems.

• Pre-insulated feed and return pipes can be joined easily

without special tools.

Technical specifications

Materials:

- pipe: two corrugated stainless steel 316L

- insulation: two closed cell elastomer UV resistance EPDM

- outer cover: UV resistant polyolefin copolymer foil

Insulation thickness: 5/8 inch (16mm)

Thermal conductivity: 0.215 BTU-in/hr-ft

-°F (0.031 W/mK)

Thermal resistance: R-4.2

Max. working pressure: 150 psi (10 bar)

Max. fluid temperature: 350ºF (175ºC)

Min. surface temperature: -60ºF (-50ºC)

Length per coil: 50 feet (15m)

Fluid capacity per foot: 1/2" - 0.0219 gallons (0.08 liters)

3/4" - 0.0346 gallons (0.13 liters)

1" - 0.0509 gallons (0.19 liters)

Min. bending radius: 5 inch (130mm)

Pessure loss:

Approx. 25% more than in a comparable smooth pipe

Flammability: Class VO

Flame spread/smoke density 25/50

Agency approvals: ASTM D 635

ASTM C 177

AB C D

1" 1 - 1/4 " 4 -

7/16

1/2

Code

1/ 2" 11/16 " 4 " 2 "

NA3520 - 15

NA3560 - 15

Weight (lb/f)

3/4" 15/16 " 4 -

3/8

1/8

NA3540 -15

0.5

0.4

0.7

Product range

NA3520-15 1/2" SolarFlex pipe 50' coil including (2) double nipples, (4) union nuts, 4 segment rings and 4 washers

NA3540-15 3/4" SolarFlex pipe 50' coil including (2) double nipples, (4) union nuts, 4 segment rings and 4 washers

NA3540- B 3/4" SolarFlex pipe bulk cut to length up to 164 foot. Without connection fittings.

NA3560-15 1" SolarFlex pipe 50' coil including (2) double nipples, (4) union nuts, 4 segment rings and 4 washers

Dimensions