21
Flue Pipe (1)
(PART #20479891)
Exhaust Air Cap (1)
(PART #20479845)
Intake Air Cap (1)
(PART #20474949)
Screw 4G (3)
(PART #20474985)
Oil Catch (1) (PART #20474925)
Insulating Cloth Cover (1) (PART #20470255)
Inlet Hose (1) (PART #20470261)
Bent Joint (1) (PART #20479884)
L-Shaped Hose (2) (PART #20474975)
Hose Band (2) (PART #20474977)
Spacer (1)
(PART #20478967)
Screw M (3) (PART #20474272)
(3)
10-5/8¨
6-5/16¨
4¨
15-3/4¨
(3)
Fuel Lifter Pump Model OPT-101
PART #20477600
PART #20479872
PART #20474951
PART #20474950
PART #20479861
PART #20474955
PART
#20474954
Exhaust Extension Pipe
PART #20479887
3
/
8
1-
3
/
8
Intake Pipe
Joint
Insulating cloth cover
Pipe Support
Hardware
L-Shaped exhaust joint
Intake Pipe
PART #20479853
Adjustable Exhaust Pipe
Max. 39-
3
/
8
~ Min. 22-
7
/
16
3
/
8
3
/
8
1-
3
/
8
PART #20479887 Flue pipe ext. (for wall up to "9~13")
PART #20479873 Flue pipe ext. (for wall up to "13~16")
PART #20479874 Flue pipe ext. (for wall up to "16~20")
PART #20479875 Flue pipe ext. (for wall up to "20~24")
Flue pipe extension
40 inch
3-
1
/
2
6-1/2 ft.
39-
3
/
8
3-
1
/
2
3-
3
/
8
The following accessory parts are available for use in non-standard installation of the Laser 531 / Laser 532. After
giving careful consideration to your desired heater and flue pipe locations and fueling system, consult your
TOYOTOMI dealer to purchase the necessary accessory parts.
Important: Use only genuine TOYOTOMI parts for your heater. Use of unauthorized, generic or other brand parts
can severely reduce performance and safety, and will void factory warranty.
Accessory
Extension pipe kit (L)*
Extension pipe kit (M)*
Extension pipe kit (S)*
L-Shaped exhaust joint*
Fuel lifter pump
Model OPT-101
Pressure reducing valve
Part No.
20479898
20479897
20479896
20479861
20477600
10005099
Application
Extends pipe system from 61-3/4 to 78-3/4”
Extends pipe system from 22-1/2 to 39-3/8”
Extends pipe system from 12-5/8 to 19-5/8”
For 90 degree bend in exhaust pipe
Used to lift fuel to heater when fuel tank is located underground or
outdoors in a position lower than the heater.
With automatic recovery.
See Note on page 38.
*
Total length of extension pipe between heater and flue pipe must be no greater than 10 ft. and no more than three
bends may be used in extension pipe.
8
1
/
2
ft.
maximum
16 in.
minimum
Less than
26 ft. (8 m)
Less than
23 ft. (7 m)
Heater
Return pipe
Required clearance
Oil level in full
Fuel tank
ACCESSORY PARTS
Heater
8
1
/
2
ft.
maximum
16 in.
minimum
Outlet side
Less than 20 in. (50 cm)
Less than
26 ft. (8 m)
Inlet side
fuel tank
Summary of Contents for Laser 531
Page 35: ......
