Central Boiler MaXIM M255 P, Руководство пользователя

Страница: 38 / 60

38 Section 7 - Filling System with Water and Purging Air
1. Connect the male end of garden hose A to valve #1
using the backflow preventer and two 3/4" female
hose x 3/4" male pipe adapters (p/n 4928). Connect
the female end of the garden hose to valve #2.
2. Close the valves on the hot supply and return lines
of the outdoor furnace.
3. Close valve #4 and valve #5.
4. Open valve #1 and valve #2. This step begins filling
the system with domestic water and purging the hot
supply line and thermostatic valve.
5. Remove cap from valve #3 and open valve #3
slightly to purge air from valve body. Close valve
#3 when air is purged.
6. Open valve #5.
7. Open the valve on the hot supply line of the outdoor
furnace for 5 minutes; then close the valve. Water
will purge air from the hot supply line. The valve
and attached fittings on the outdoor furnace will
become cold as water starts filling into outdoor
furnace.
8. Close valve #5, #1 and #2.
9. Move hose A from valve #2 to valve #3.
10. Open valves #1, #3 and #4.
NOTE: Skip to Step 12 if your system does not
have a seasonal manual bypass valve (valve #6
shown in Fig. 35).
11. Valve #6 (seasonal manual bypass valve) should
be positioned to direct water through the heat
exchanger first.
12. Open the valve on the return line of the outdoor
furnace.
NOTE: Skip to Step 14 if your system does not
have a seasonal manual bypass valve (valve #6
shown in Fig. 35).
13. As soon as the valve on the return line of the outdoor
furnace is opened, turn valve #6 to the bypass
direction for 30 seconds; then turn valve #6 back to
previous position.
NOTE: The heat exchanger manifold (lower
manifold first) and fittings will become cold as
water flows through the heat exchanger to the
outdoor furnace.
14. Allow outdoor furnace to fill until the controller no
longer indicates .
15. Close valves #1 and #3. Disconnect hose A and
replace caps on valves #1, #2 and #3.
16. Open the valve on the hot supply line of the outdoor
furnace and valve #5.
NOTE: The valves on the hot supply and return
lines of the outdoor furnace, and valves #4 and
#5 should all be open, allowing the pump to
circulate heated water in the system. Start pump.
NOTE: If there are multiple circuits connected to
the outdoor furnace, repeat the process for each
circuit.
17. Refer to Firing the Outdoor Furnace to fire up the
outdoor furnace.
CAUTION
Be sure the outdoor furnace is filled with water
before firing. Water level is safe when the water
level indicator rod is above the vent cap (Fig. 48).
Corrosion Inhibitor Plus™ must be added before
the initial fill (see Water Quality and Maintenance).
Fig. 48
18. Check the system for leaks again. Inspect all
fittings and hose ends for any signs of leakage; repair
as necessary. It may be possible to stop a very slow
leak at a hose clamp by tightening the clamp after
the system has warmed up and the poly becomes
more pliable. It might also be necessary to install a
second hose clamp with the screw positioned on the
opposite side. Release the pressure upon completion
of the test.
NOTE: It should not be necessary to add water
to the outdoor furnace more frequently than
once every twelve months. If it is more frequent,
either there is a leak in the system or the outdoor
furnace is boiling because of improper operation
or maintenance (see Troubleshooting Section).
Be sure to locate and repair the problem
immediately. Frequently adding water can cause
deterioration in the water jacket. Each time water
is added, refer to Water Quality and Maintenance
for water testing procedures. If indicated by
test results, add Corrosion Inhibitor Plus™ as
required. Deterioration due to improper operation
and/or maintenance is not covered by warranty.