MAINTENANCE
READ COMPLETELY BEFORE STARTING WORK
1.Disconnect boiler from electric power supply at main safety switch or fuse panel. Then, turn boiler switch to “off” position.
2.On automatic feed units, close valve on incoming water line. Drain boiler completely of water.
3.Open boiler door to expose heating element.
4.Disconnect wire (electric) leads connecting element to main power system of boiler. Again note wire connections to facilitate reassembly. Proceed to remove (6)
5.Thoroughly clean boiler flange of all foreign material. Be certain no part of old gasket remains on boiler flange.
6.Apply
7.When all (6) flange bolts are tight, connect all wires to terminals.
Make certain wires are clean and bright to assure good electrical contact and nuts on screws are firmly secured.
WARNING: Avoid use of chemical cleaning com- pounds. Follow maintenance instructions.
8.Open water valve so water supply can reach boiler feed mecha- nism.
9.Put main safety switch to “on” position.
10.Turn boiler to “on” position.
11.As boiler automatically refills, observe the new flange assemble for possible leaks. If water is noticed, to bolts must be retightened. Before doing this, turn the boiler off at the main fuse safety switch.
12.As boiler is heated to working pressure, check flange assembly again for leaks.
WARNING: Avoid the use of chemical cleaning com- pounds. Follow maintenance instructions
RENEWAL PARTS IDENTIFICATION
Safety Valve
Operating Pressure Control
Range
Manual Reset High
Limit Control
Steam Outlet
Pressure Gauge,
On/Off Switch and
Pilot Light
Water Level Sight Glass
McDonnell & Miller #194
Low Water Cutoff/Pump
Check Valve/Water Inlet (not shown)
Drain Blowdown Valve
Drain Blowdown Valve
18