Honeywell R4795A Manual Do Utilizador

7

60-2285—7

R4795A

INSTALLATION

M8686

BLUE

WHITE

F

G

BLUE

YELLOW

BLACK

BLACK

F

G

1

G

F

X

X

X

X

X

X

G

F

X

X

1

C7027, C7035, AND C7044 FLAME DETECTOR LEADS ARE COLOR 
CODED BLUE AND WHITE.  THE BLUE LEAD MUST BE CONNECTED 
TO THE F TERMINAL AND THE WHITE LEAD MUST BE CONNECTED 
TO THE G TERMINAL.  THIS CIRCUIT IS DC AND THE UV SENSING 
TUBE IS POLARITY SENSITIVE.  REVERSING THE LEADS EVEN
 MOMENTARILY CAN DAMAGE OR DESTROY THE UV TUBE.

POWER
SUPPLY

Make sure that the power supply is disconnected.
Loosen the thumbscrew and remove the cover (see Fig. 8).
Position the R4795 over the Q270 Subbase. Start all ten

mounting screws and tighten uniformly. These screws com-
plete electrical circuits (terminal 1 excepted) and hold the
R4795 to the subbase.

L1 
(HOT)

L2

1

1

2

2

IF A LINE VOLTAGE ALARM IS USED, THE R4795 MUST BE 
MOUNTED IN A SUITABLE ENCLOSURE.

POWER SUPPLY MUST MATCH THE ELECTRICAL RATINGS OF THE 
ALARM. PROVIDE DISCONNECT MEANS AND OVERLOAD 
PROTECTION AS REQUIRED.

LINE OR
LOW VOLTAGE
ALARM

ALARM TERMINALS (OPTIONAL)

N.C.

N.O.

COM

M8687

R4795

ALARM 
POWER
SUPPLY

Do not overtighten the mounting screws because
damage to the circuit board can result. Maximum
recommended torque is 10 lb-in. (1.13 N•m).

Replace cover and securely tighten thumbscrew.

TERMINAL 
BLOCKS

PURGE TIMER

AMPLIFIER

COVER

THUMBSCREW

SAFETY SWITCH
RESET BUTTON
IN COVER

CAPTIVE MOUNTING 
SCREWS (10)

Q270 
SUBBASE

M8688