10
For continued safe operation, the Blocked Vent Shut-Off System
(BVSO) is required to be inspected and maintained annually by a
qualified agency.
1.
Disconnect power to the appliance;
2.
Remove the two screws holding on the BVSO assembly cover;
3.
Remove the cover;
4.
Remove the two screws holding the control box to the heat
transfer tube assembly. Sliding the control box in the appropriate
direction will unlock it from the heat transfer tube assembly;
5.
Carefully remove any build-up from the thermal switch surface;
6.
Clear and remove any build-up or obstruction inside the heat
transfer tube;
7.
Re-mount, lock and fasten the control box with the 2 screws
removed in step 4;
8.
Re-attach the assembly cover with the screws removed in
step 2;
9.
Re-establish power to the appliance.
PART 4
INFORMATION
Model:
Serial number:
Furnace installation date:
Service telephone – Day:
Night:
Dealer name and address:
START-UP TEST RESULTS
Nozzle:
Pressure:
Lb/psi
Burner adjustments:
Primary air
Fine air
Draw Assembly
CO
2
:
% Smoke scale :
(Bacharach)
Gross stack temperature:
° F
Ambient temperature:
° F
Chimney draft:
" W.C.
Overfire draft:
" W.C.
Test performed by:
