Loading ...
Loading ...
Loading ...
8
WATERMAZE SERIES OPERATOR’S MANUAL
WB • 8.913-984.0-N
connectors supplied by the customer and is located on
the rear panel with the label, “Wastewater Inlet" (see
page 11). NOTE: The WATER MAZE is automatically
controlled by the 3 point level controller and will supply
wastewater as needed after startup.
CAUTION: Foaming detergents will affect the
evaporation process in the WATER MAZE. An
anti-foaming kit has been installed to control foam.
Venting:
Each evaporator must have its own vent stack. A 10"
vent pipe (WB-50) must be installed using the provided
exhaust stack adapter to the machine's exhaust stack
and be vented to the atmosphere. A 12" pipe must
be used for the WB-120 (see figure 4). The top of the
exhaust stack should be sufficiently above the roof to
allow for proper dispersion of the exhaust. It should be
unobstructed and in compliance with all local and federal
codes. Avoid bends if possible.
NOTE: If possible, the stack should be a single piece.
CPVC is the recommended stack material. If it has
seams, the seams must be sealed with a duct sealant
to prevent moisture leaks since the exhaust is 100%
saturated air. All stacking must be installed by qualified
personnel only.
NOTE: Exhaust stacking must be water tight.
A straight stack is always the best. If you must have
bends, use 45° not 90° elbows. No more than two bends
should be used. A vertical discharge design is our ONLY
recommendation for a rain cover. A vertical rain cover is
an over-sized piece of stack material that is concentric
with the stack. The cover extends 6" down over the top
of the stack to allow flexibility in positioning fasteners.
Both rain protection and back pressure reduction are
achieved with this design. It works because rain never
falls straight down; it always falls at an angle. Therefore,
the cover is made long enough so that any rain will hit the
cover’s inside wall. Rain then runs down the inner wall
and out the angular opening at the top of the exhaust
stack (see page 13).
Air:
Connect air to regulator, adjust to 60-100 psi at 10 cfm
.
PRE-STARTUP CHECK LIST
Follow all pre-start procedures before attempting to start
the WATER MAZE.
1.
Level evaporator using leveling feet or anchor ma-
chine to floor. Anchoring to floor is the preferred
method.
2. Verify the voltage, then connect the electrical lines
to the machine. To be done by qualified personnel.
3. Leak test connected gas line.
4. Connect the wastewater line from the storage
tank.
NOTE: the pH of the wastewater should be kept
between 8 - 10 in the storage tank.
5. Attach (black) N/O float inside wastewater tank just
above outlet so fill pump doesn't suck air.
6. Attach a high heat hose (180°-190°F) to the 3/4"
stainless steel elbow located at the back side of
evaporator for the auto purge cycle. NOTE: Do not
send waste back to fill tank.
7. Attach the stack to the exhaust stack flange.
8. Remove the plugs from the brass orifices on the
gas and air line and install the test valves with the
brass hose barb fittings (not included). (See page
18.) Make sure the gas line is shut off.
NOTE: The valves, fittings, and manometers are
included in the WATER MAZE set-up kit, #7-8200,
which must be purchased separately.
9. Connect the high pressure port of the 0 to 50 ma-
nometer to the bottom gas orifice port and open the
gas line.
NOTE: Make sure the manometer is zeroed before
taking readings. Use the zero set screw at the bot-
tom of the manometer. This will give you the static
gas pressure. For measuring the static gas pressure
on the WB-50/120, use the valve at the bottom of
the machine next to the high gas pressure switch
(see page 18). This pressure should be 45 water
column inches (wci). Close the valve and remove
the manometer. You must have between 12 and 60
wci before the high/low gas switches will allow the
burner to ignite.
10. Connect the 0 to 10 manometer to the hose barbs
on the gas line and open the valves with the low
pressure port of the manometer to the top port of
the orifice and the high pressure port to the bottom
port of the orifice. This will give you the pressure dif-
ferential between the high side, before the orifice,
and the low side, after the orifice. This will be used
later to figure the evaporation rate and to balance
the burner. This reading will be taken after start up
when the burner is being used (see page 18).
NOTE: Items 8 through 10 have been set at the
factory but installation conditions change so adjust-
ments need to be verified.
11. Open the valve on gas line and wastewater line.
12. Connect purge hose to bottom of combustion tank
and run to a separate holding tank. Do not connect
to feed tank.
13. Connect air.
14. Adjust anti-foam air to 2 psi and UV scanner air to
1/2 psi.
Loading ...
Loading ...
Loading ...