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Roberts Gorden DAT100 User Manual

Page 28

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D

UAL

A

IR

®

H

EATING

AND

COOLING

U

NITS

I

NSTALLATION

O

PERATION

AND

S

ERVICE

M

ANUAL

22

Figure 12: Automatic Burner Control Box Sequence

Figure 13: Modureg Gas Valve

Burner sequence for Honeywell S4563 or S4565C

Flame Signal

Start Gas Valve

Ignition Spark

Supply 230v

CLOSE

DOWN

RUN

START

ts

Signals Output By Control

Required Incoming Signals

Flue Fan

Pressure Switch P

C

NO

NC

30 Sec. Purge*

*Purge time begins at pressure switch change over.

ts=Safety time

S4563C 3 seconds (alternate 5 seconds)

S4565C 5 seconds

If at any stage the flame fails, the control will go to "lockout". The red light will illuminate and the
control must be manually reset before further start attempt.

Inlet Pressure

Gas Outlet

Outlet Pressure

Plug for

Main Gas Valve

Gas Inlet

Plug for

Main Gas Valve

Max Pressure Adjustment

Min Pressure Adjustment

6.3mm AMP

Terminals for

Modulation

Modureg Modulating Regulator

Honeywell Gas Valve

Moving Shaft

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