2. Installation
Pipe Installation:
Steam piping must be of black pipe, not
galvanized. Work must be performed by an experienced
steamfitter. All state and local codes must be met.
Electrical:
All wiring must be in accordance with the
National Electric Code and any local codes that may apply.
Wiring must be done by a competent, certified electrician.
Use only copper wire.
Water:
Ensure that all electrical components are in a dry
location not subject to steam or water.
Blowdown Valve:
When the blowdown valve is utilized, a
large volume of hot water and steam is discharged. Ensure
that this valve is properly piped for this discharge. State and
local codes must be met as applicable.
Safety Valve:
Safety valve is designed to discharge hot
steam when the set pressure is exceeded. Ensure that the
discharge port is pointing toward the back of the unit away
from the operator and any aisles.
3. Operation
CAUTION! Do not position your face over the fill funnel.
Never open the fill valve when unit is under pressure.
1.
Close blowdown valve (3).
2.
Connect electric cord to grounded 120-Volt outlet.
3.
On the electronic boiler control (9), turn on the
power switch (16).
4.
Open fill valve (6) and release air from unit by
opening steam valve (2). On JJ-models: Release air
by pressing foot switch with power switch of
electronic boiler control (9) on.
5.
Pour water into funnel (4) until it reaches the "Max.”
level mark beside the gauge glass. Do not overfill.
Close fill valve (6).
NOTE:
Overfilling will cause dirt and rust to be
carried into the steam lines and onto goods. It will
also cause the steam release valve to leak.
Use tap water only!
6.
On the electronic boiler control (9): Push the “Low
Water” manual reset switch (15). The “Heating” light
(14) will stay on until the preset working pressure is
reached.
7.
When the water level gets low, the unit will shut off
automatically and the “Low Water” alarm light (15)
will be lit. To refill, turn off the power switch (16) and
allow the steam pressure to drop to zero.
8.
Refill the boiler by repeating this procedure.
4. Maintenance
CAUTION! Maintenance and repair must be performed
by experienced personnel. Before maintenance or
repair, ensure that the boiler is cold, drained and has no
pressure or electricity. All electrical and steam safety
precautions must be taken.
Leaks on the gauge glass fixtures:
The two brass nuts at
the top and bottom of gauge glass (8) should be tightened
until leakage stops. Follow instructions on page 1 of this
manual.
(Note: Gauge glass valves should be open all the time)
Replace the Gauge Glass (8):
Replace the gauge glass
minimum once per year.
CAUTION! Ensure that the boiler is cold, drained and
has no pressure or electricity. Be careful not to break
the glass.
1. Close gauge glass valves (top and bottom).
2. Open petcock on bottom fixture to drain glass.
3. Loosen nuts at top and bottom of glass.
4. Slide glass up, pull out on bottom of glass and remove. If
removing of glass is not possible, then it may be necessary
to rotate either the bottom valve or both valves 1/8th of a
turn.
5. Install glass by reversing above procedure.
NOTE:
Always install new rubber washers.
Blowdown:
Perform boiler blowdown minimum once per
week.
CAUTION! Stand clear of scalding water and steam.
Before opening the blowdown valve, ensure that it is
properly piped in accordance with state and local
codes.
Turn the power switch (16) off and allow steam pressure to
drop to 5 psig. Then open the blowdown valve (3).
Adjust Steam Pressure (22):
This control is factory preset,
and usually does not require adjustment.
CAUTION! Stand clear of safety valve and scalding
steam.
1. Disconnect the power cord plug from the wall outlet.
2. Remove the cabinet side cover to gain access to the
operating pressure control.
CAUTION!
Do not adjust the pressure high-limit control
(23) marked “DO NOT ADJUST”. This control is factory
preset for safety purposes.
3. Adjust pressure by turning the black adjustment knob.
Test the Safety Valve (7):
Test this valve once per month.
CAUTION!
Stand clear of safety valve and scalding
steam. Before testing the safety valve, ensure that it is
properly piped in accordance with state and local
codes.
NOTE
: Safety valve should be tested at full operating
pressure. If discharge pipe is required, it should not be
smaller than valve outlet and must be rigidly supported.
1. Hold trip lever open for 5 sec. in order to flush off valve
seat.
2. Permit valve to "slap" shut. If a leakage is evident, repeat
this test or replace the valve.
Replace the Heating Element (20):
CAUTION: Ensure that the boiler is cold, drained and
has no pressure or electricity.
1. Remove the cabinet side panel
2. Remove the heating element terminal cover
3. Disconnect the wires from the heating element
terminals.
4. Remove all 4 nuts from the element flange and pull out
the heating element.
5. Clean the flange surface before installing the new
element and gasket.
Содержание JR06
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