Central Boiler MaXIM M255 P, Руководство пользователя

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19
CIRCULATION PUMPS
NOTE: The direction of water fl ow is very
important for the proper operation of the outdoor
furnace. Installing a swing check valve in the
return line can prevent possible reverse fl ow.
Water Flow
For a single building using a water-to-air heat exchanger
system with a domestic water heater, the direction of
water fl ow must go from the hot outlet on the outdoor
furnace to the lower side fi tting of the domestic water
heater exchanger, to the lower fi tting of the heat
exchanger on the existing furnace, and then to the return
port of the outdoor furnace.
NOTE: if there is a high heat draw with a single set
of lines, a wraparound pump (as shown in Fig. 21)
may be needed in order to keep the supply water
temperature the same temperature indicated by
the FireStar controller.
NOTE: Some systems may have different fl ow
patterns.
Access to Ports on Furnace
Access to the hot supply and return ports is gained by
removing the access panels on the lower right-hand
side and back of the furnace. There are two hot supply
and two return ports on the furnace. This confi guration
allows for mounting the circulation pumps on the
furnace (Fig. 22).
Fig. 22
There are eight knock-out tabs on the fl oor panel of
the furnace to accommodate the water lines. These
align with the hollowed-out area in the foundation
specifi cations (Fig. 6). The pump access area in the back
right corner must align with the blocked out area of the
foundation.
Installing Circulation Pumps
The Taco 009 is a medium fl ow, high head pressure
pump that requires an adequate amount of pressure on
the outlet side to prevent the motor from overloading.
Maxim
with Wrap-around-pump Installed
Side View Rear View
Area of Focus
Rear Side
STAR by Central Boiler FIRE
Water Temp
Clean Out Mode
Hold to Light
Press
Twice for Auto Relight
Hold to Prime
Press
Twice to Clean
Power
TM
Ignition
Auto Relight Enabled
p/n 9507
Auger
Air Adjust
5% 100% 60% Heat Output
20% 65% 1%
HIGH MEDIUM LOW
1-1/4 1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
1-1/4
198
5871
380
410
171
224
1334
274
Qty p/n Description
Parts List
1 198 Ball Valve, 3/4"
2 171 Taco 007 Pump
1 410 Ball Valve, 1-1/4"
2 1330 PEX Adapter, 1" x 3/4"
2 224 Isolation Flange, 3/4"
1 225 Isolation Flange Kit, 1-1/4"
3 274 90° Street Elbow, 3/4"
2 380 MPT to PEX, 1-1/4"
2 556 Power Supply Cord, 32"
1 5871 Swing Check Valve, 1-1/4"
6 5926 Stainless Steel Clamp
Crimp Ring, 1"
2 1334 90° PEX Elbow, 1"
2 382 90°PEX Elbow, 1-1/4"
Parts and accessories sold separately.
Pump size may vary.
225
556
5926
382
Fig. 21
Section 6 - System Installation