Olsen ODVB Series, User'S Information Manual

4

LIGHTING INSTRUCTIONS

To Turn Off Gas To Appliance

1. Set the thermostat to lowest setting.

2. Turn off all electric power to the appliance if 

service is to be performed.

3. Push in gas control knob slightly and turn 

clockwise  

  to "OFF." DO NOT FORCE. 

GENERAL INSTRUCTIONS

Before seasonal start-up, have a qualified service agency 

check the boiler for soot and scale in the flues, clean 

the burners and check the gas input rate to maintain 

high operating efficiency.

!

CAUTION

Label all wires prior to disconnection when 

servicing controls. Wiring errors can cause 

improper and dangerous operation.

Verify proper operation after service.

The service agency or owner should make certain the 

system is filled with water to minimum pressure and 

open air vents, if used, to expel any air that may have 

accumulated  in  the  system.  Check  the  entire  piping 

system and, if any leaks appear, have them repaired.

Figure 2 - Circulator

Many  circulators  like  the  one  pictured  in  Figure  2 

(above) require periodic servicing. The motor usually 
has openings at each end to lubricate the bearings. 

Put  about  one  half  teaspoon  of  SAE  20  or  30  non-

detergent motor oil in each opening twice a year.

!

CAUTION

Do Not Over Oil!!

Many  circulators  have  an  oil  opening  for  the  shaft 

bearing. This should be oiled at the same time for quiet 

operation.  Follow  the  manufacturer's  instructions  for 

oiling the shaft bearing.

The  venting  system  should  be  inspected  at  the  start 

of each heating season. Check the vent pipe from the 

boiler to the chimney for signs of deterioration by rust 

or  sagging  joints.  Repair  if  necessary.  Remove  the 

vent pipe at the base of the chimney or flue and using 

a mirror, check vent for obstruction and make certain 

the vent is in good working order.

Figure 3 - Boiler Flue Gas Passageways

BURNERS

ORIFICES

GAS VALVE

HOLD DOWN 

BOLT

FLUE 

COLLECTOR

VENTER 

ASSEMBLY

A1795

Note

 Some gas control knobs cannot be turned 

from "PILOT" to "OFF" unless knob is pushed in 

slightly. 

DO NOT FORCE.

4. Replace access panel.