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INSTALLATION INSTRUCTIONS
BECKETT AC READY KIT
PART NOs. 7520U, 51950U, 51970U, & 21905U
Notice Special Requirements
CAUTION! This Equipment must be installed, adjusted
and started only by a qualied service technician – an
individual or agency, licensed and experienced with
all codes and ordinances, who is responsible for the
installation and adjustment of the equipment. The
installation must comply with all local codes and
ordinances and with the National Fire Protection Standard
for Liquid Fuel Equipment, NFPA 31 (or CSA B139-M91).
Replacement Parts
Description Part Number
GeniSys 7505
Replacement
AC Ready Kit 51950U (Includes 51970U & 21905U)
Terminal Base only 51970U
Transformer only 21905U
7520U (Includes GeniSys 7505 & 51950U)
Specications
Transformer Input Voltage: 120 volts
Transformer Output Voltage: 24 volts
Installation Instructions
1. Disconnect power before servicing burner.
2. Remove existing control.
3. Remove wiring box knock-out.
4. Insert white & black wires of transformer, Part No.
21905, through knock-out and secure transformer to
wiring box using supplied lock nut.
5. Connect black wire L1 and white wire L2 to 120 volt
power supply in wiring box using wire nuts.
6. Place baseplate on wiring box. Pull connecting
burner wires through main opening.
7. Reconnect wires to the control (see primary control
wiring diagrams for complete wiring instructions).
Install control over baseplate and onto wiring box.
8. Connect red transformer wire with fork connector to
R terminal on AC/Ready terminal board. Connect
black transformer wire with fork connector to C
terminal on AC/Ready terminal board.
9. Connect white low voltage wire from terminal board to
TW on primary control. Connect red wire low voltage
wire from terminal board to TR on primary control.
10. Connect low voltage thermostat wires to AC Ready
Kit terminals as shown in wiring illustration on
reverse page.
Wiring Illustration on Reverse ►
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Wiring Requirements for New Installation, Or Direct Replacement
120 VAC Factory Wiring
120 VAC Field Wiring
Black
White
Black
White
24 VAC Field Wiring
Transformer
Oil Primary
Black
Red
Fan
Relay
TR
TW
AC
Relay
Red
White
AC Ready
Terminals
W
R
G
Y
C
R
Thermostat
G
Y
W
C
R.W. BECKETT CORPORATION
P.O. Box 1289, Elyria, Ohio 44036
R.W. BECKETT CANADA, LTD
430 Laird, Unit 3, Guelph, Ontario, N1G 3X7
Part No. 61566 R5, Printed in the USA 04/15
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