Burnham RTC (Return Temperature Control) Instalační manuál stáhnout pdf (Strana 17)

17 of 60

Boi

First measure the temperature using the thermometer.

Then measure the resistance of the sensor at the control.

The wires from the sensor must not be connected to the

control while the test is performed. Using the chart below,

estimate the temperature measured by the sensor. The

sensor and thermometer readings should be close. If the

test meter reads a very high resistance, there may be

a broken wire, a poor wiring connection or a defective

sensor. If the resistance is very low, the wiring may be

shorted, there may be moisture in the sensor or the

sensor may be defective. To test for a defective sensor,

measure the resistance directly at the sensor location.

Do not apply voltage to a sensor at any time as damage

to the sensor may result.

Heat

Demand

20 to 260 V (ac)

-50

-45

-40

-35

-30

-25

-20

-15

-10

-5

Temperature

Resistance

Temperature

Resistance

Temperature

Resistance

Temperature

Resistance

°F

°C

Ω

°F

°C

Ω

°F

°C

Ω

°F

°C

Ω

-46

-43

-40

-37

-34

-32

-29

-26

-23

-21

-18

-15

-12

-9

490,813

405,710

336,606

280,279

234,196

196,358

165,180

139,402

118,018

100,221

85,362

72,918

62,465

53,658

-7

-4

-1

46,218

39,913

34,558

29,996

26,099

22,763

19,900

17,436

15,311

13,474

11,883

10,501

9,299

8,250

100

105

110

115

120

125

130

135

140

145

150

155

7,334

6,532

5,828

5,210

4,665

4,184

3,760

3,383

3,050

2,754

2,490

2,255

2,045

1,857

160

165

170

175

180

185

190

195

200

205

210

215

220

225

102

104

107

1,689

1,538

1,403

1,281

1,172

1,073

983

903

829

763

703

648

598

553

108 to 132 V (ac)

Test the Sensors

A good quality test meter capable of measuring up to 2,000,000 Ω (1kΩ = 1000 Ω) is required to measure the sensor resistance.

In addition to this, the actual temperature should be measured with a good quality digital thermometer.

Test the Power Supply

Make sure exposed wires and bare terminals are not in

contact with other wires or grounded surfaces. Turn on

the power and measure the voltage between the Power

L and Power N terminals (3 and 4) using an AC voltmeter,

the reading should be between 108 and 132 V (ac).

Test the Powered Inputs

Heat Demand

Measure the voltage between the Heat Demand

terminals (1 and 2). When the heat demand device

calls for heat, between 20 and 260 V (ac) should be

measured at the terminals. When the heat demand

device is off, less than 5 V (ac) should be measured.

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 59 60

Komentáře k této Příručce

Žádné komentáře

Burnham RTC (Return Temperature Control) Instalační manuál Strana 17

Komentáře k této Příručce

Související produkty a manuály pro ne Burnham RTC (Return Temperature Control)