C7015A

 

 

 

 

 

 

 

 

 

 

 

 

INSTALLATION

is available to facilitate flame sighting after the C7015A

is

 

pipe diameter is reduced, the effect is the same as adding an

mounted.

 

 

 

 

orifice plate to the pipe as discussed below.

FIELD OF VIEW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. P-Methods of reducing C7015A Detector

A lead sulfide photocell, like other photocells, views an

 

 

area rather than a point. It is unable to pinpoint pilot flame

 

 

field-of-view.

 

 

 

 

 

 

 

 

locationaseasilyasaflamerod.Ifthedetectoristoproveonly

 

 

 

 

 

 

 

 

 

 

 

 

the pilot jlame, it must view only a part of the flame so it can

 

 

 

 

 

 

 

 

 

 

 

detect the pilot only when it is large enough to successfully

 

 

 

 

 

 

 

 

 

 

 

light the main burner. The viewing area must not be so large

 

 

 

AREA

/M-

that a weak and wavering pilot flame could energize the

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

photocell and cause the flame relay to pull in.

 

 

 

g/j___------

The area viewed by the photocell depends on:

 

\

UNRESTRICTED VIEW

1. Diameter of the opening in front of the cell.

 

 

 

 

 

 

 

 

 

 

 

 

2. Distance from the cell to the opening.

 

 

 

 

 

 

 

 

 

 

 

 

3. Distance from the opening to the area to be viewed.

 

 

 

 

 

 

 

 

 

 

 

Fig. 2 shows three ways of reducing the field of view,

 

 

3 BY

LENGTHENING

assuming that the distance from the viewing opening to the

 

 

 

 

 

THE SIGHT PIPE

flame or refractory cannot be changed. These are (1) length-

 

 

 

 

 

 

 

 

 

 

 

ening the sight pipe, (2) reducing the diameter of the sight

 

 

 

 

 

 

 

 

 

 

 

pipe, and (3) installing an orifice plate in front of the photo-

 

 

 

 

 

 

 

 

 

 

 

cell. Combinations of these methods can be used.

 

 

 

 

 

 

 

 

 

 

 

 

CHANGING PIPE LENGTH OR SIZE (DIAMETER)

 

 

 

 

 

 

 

 

 

 

 

 

Theeffectorchangingthelengthofthesightpipeisshown

 

 

 

 

 

 

 

 

 

 

 

in Tables 2 and 3.

 

 

 

 

 

 

 

 

 

 

 

 

 

Changing the diameter of the sight pipe is not as simple as

 

 

 

 

 

 

 

 

 

 

 

changing the length,because the C7015A mount and mount-

 

 

 

 

 

 

 

 

 

 

 

ing accessories are all sized for 3/4 in. pipe. When the sight

 

 

 

 

 

 

 

 

 

 

 

TABLE 2-DIAMETER OF AREA SIGHTED THROUGH VARIOUS LENGTHS OF 3/4 -IN. PIPE

 

 

WITHOUT ORIFICE, IN IN.

 

 

 

 

 

 

 

 

Length of

 

Distance From End of Pipe To Sighted Area-in.

 

 

 

 

 

 

Pip&.

6

12 1 18 1 24 1 30

1

36 I 42 I 48

I

54 I

60

1

66 1 72

 

 

7

 

1.5

 

2.3

 

3.1

 

3.9

 

4.7

 

5.5

 

6.3

 

7.1

1

 

8.0

8.7

9.6

 

10.4

 

8

 

1.4

 

2.1

 

2.8

 

3.5

 

4.2

 

4.9

 

5.6

 

6.3

 

1

7.1

7.7

8.5

9.1-

TABLE 3-DIAMETER OF AREA SIGHTED THROUGH VARIOUS LENGTHS OF 3/4 IN. PIPE

 

 

 

 

 

 

 

 

 

 

 

WITHOUT ORIFICE. IN MM

 

 

 

 

 

 

 

 

Length of

 

 

 

 

 

 

 

Distance From End of Pipe To Sighted Area-mm

e

 

 

 

 

Pipe-mm

152.4

I

304.8

I

457.2

I

609.6

I

762.0

1 914.4

I 1066.8

11219.2

I

1371.6 I 1524.0 11676.4

11828.8

 

25.4

160.0

1

302.3

1

447.0

1

589.3

1

721.4

876.3

I

 

 

 

 

Over 1016.0

 

 

 

 

60-2306-5

Page 4 Page 6
Page 5
Image 5
Honeywell C7015A manual Length Distance From End of Pipe To Sighted Area-in, 36 I 42 I 66 1, Pipe-mm, 25.4, Over 60-2306-5
Page 4 Page 6

C7015A specifications

The Honeywell C7015A is a versatile, high-performance electronic air temperature sensor designed for use in a variety of HVAC applications. Recognized for its reliability and advanced technology, this sensor ensures accurate temperature measurements, contributing to the overall efficiency of climate control systems.

One of the main features of the C7015A is its exceptional sensing accuracy. The sensor utilizes a thermistor-type temperature sensing element, which allows for precise measurements across a broad temperature range. This precision is critical in maintaining the desired environmental conditions in residential, commercial, and industrial settings.

Another key characteristic of the Honeywell C7015A is its robust design. It is built to withstand a range of installation environments, ensuring longevity and consistent performance. The sensor comes with an IP rating that indicates its resistance to dust and moisture, making it suitable for various indoor and outdoor applications. Its durable construction ensures that it can operate effectively even in challenging conditions, enhancing its reliability.

The C7015A is designed for easy installation and integration into existing systems. It features standard electrical connections, which allows for straightforward wiring to a variety of control systems. Additionally, the sensor can be utilized with a multitude of Honeywell control units, enhancing system compatibility and flexibility. This interoperability is a significant advantage for HVAC technicians and engineers who require seamless integration with existing equipment.

Furthermore, the C7015A leverages advanced technologies such as digital signal processing to minimize noise and improve the accuracy of temperature readings. This technology ensures that the sensor can provide stable output even in fluctuating conditions, which is vital for precision climate control.

In summary, the Honeywell C7015A electronic air temperature sensor is characterized by its high accuracy, durable construction, ease of installation, and advanced technological features. These attributes make it a reliable choice for HVAC professionals aiming to optimize temperature control in various applications, ensuring both comfort and energy efficiency. The C7015A stands as a testament to Honeywell's commitment to quality and innovation in the field of environmental control solutions.
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