Burnham RTC (Return Temperature Control) Instrukcja Instalacji Pobierz pdf (Strona 3)

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Display

Symbol Description

Displa

s the

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Displa

s an abbre

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name of the sele

cted item

Displa

s the

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alue

of the sele

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Displa

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atus of

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nputs, ou

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ation

Selects Menu

s, Items

and adjusts setti

ngs

Item

Monitor Delay Open Close

Demand

Burner

Displays when the boiler relay is turned on.

Pointer

Displays the control is operating as indicated

by the text.

°F, °C

Displays the unit of measure that all of the

temperatures are to be displayed in the

control.

Section A

General

Operation

Page 3 - 4

Section B

Control

Operation

Page 4 - 5

Section C

Control

Settings

Page 5 - 6

Sequence of Operation

Section A: General Operation

POWERING UP THE CONTROL

When the control is powered up with 120 V (ac), the control displays “rtc” for 2 seconds followed by the software version for 2

seconds. The control then enters the normal operating mode

OPERATION

The control operates a floating action actuator motor connected to a 3-way or 4-way valve to control the boiler return water

temperature to prevent flue gas condensation and thermal shock. The control can also be used to provide outdoor reset or a fixed

setpoint temperature to the supply water temperature.

Section D

Temperature

Monitoring

Page 6

Pump

Displays when the boiler recirculating pump is

in operation.

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