IBC SFC-99 Installation And Operating Instructions Manual page 60

NOTE
The safety warning regarding
burner refractory on page
4-2 of this manual must be
observed.
Figure 45: Tighten Allen bolts in
cross pattern direction.
3-6 3-6
SFC COMBI BOILERS SFC-99, SFC-125 SFC COMBI BOILERS SFC-99, SFC-125
When removing the heat exchanger cover in step 7, be careful
CAUTION:
not to damage the burner and refractory material located on the opposite side
of the heat exchanger cover. Use caution when handling refractory materials.
See Caution on page 4-2.
6. Remove all 6mm Allen bolts from the heat exchanger cover and carefully
remove the front cover complete with the fan and the gas valve attached.
Carefully inspect the gasket sealing the heat exchanger to the heat
exchanger cover for damage, hardness, cracks, and/or discoloration. If
damaged in any way, you must replace the gasket.
Place the heat exchanger cover in a safe location.
7.
REASSEMBLY
1. Replace the heat exchanger gasket. Inspect, and when needed change other
gaskets. If necessary, inspect and clean the gasket mating surface.
2. Place the heat exchanger cover onto the heat exchanger and loosely install
the 6mm Allen bolts removed in step 6. Tighten the 6mm hex bolts in a cross
pattern as shown in the Figure 45.
3. Connect the gas line to the gas valve ensuring the O-ring is in place. Tighten
the gas valve nut. Ensure the upper gas valve connection is tight. Re-connect
the gas valve electrical connection.
4. Re-connect the electrical connection to the fan.
Inspect the condensate trap for debris. Remove and clean if necessary. Fill
5.
the condensate trap with water.
Turn on the gas supply valve to the unit and inspect for gas leaks. Use an
6.
approved leak detection solution. Soap test all joints.
Ensure the unit is full of water and purged of air if the unit was drained during
7.
disassembly.
8. Turn on the power to the unit and create a call for heat or for domestic hot
water.
9. Inspect the gasket around the unit cover.
Check flue gases for proper combustion. See Section 3.3 Commissioning for
10.
proper adjustments.
Re-install the unit's cover and set the unit into normal operation.
11.
INSTALLATION AND OPERATION INSTRUCTIONS INSTALLATION AND OPERATION INSTRUCTIONS