3. INSTALLATION
2. Water connection
1) The illustration shows the connections for the water and gas attachments of the boiler. See valves configuration
2) Check that the maximum water mains pressure does not exceed 3bar; if it does, a pressure reducing valve must be
installed.
3) For measuring of the pipes and of the heating bodies in the heating system, the residual head value should be calculated
as a function of the requested flow rate, in accordance with the valves shown in the circulation pump graph
3. Drain connection
1) Extend the hose from the safety valve and connect the drain hole.
※
Caution : Do not store any wettable things under the boiler or near the drain hole.
3-3 HEATING PIPE CONNECTION
1. Install the expansion tank 1m higher than the top of
boiler. In installing it in a basement, Install it 1m higher
than the floor pipe.
2. Connect the Domestic Hot Water Inlet with water
storage tank, not with the water pipe directly.
3. Do not equip Water supplement pipe and Drain
pipe with the check valves.
5. Install expansion tubes at Heating water outlet and
Drain pipe by using Tee
* Install the expansion
tube without any curve.
* Use a tube more
than 20A as the
expansion tube.
6. Use the appropriate capacity of circulation pump,
and install a drain valve.
4. Keep the pressure of DHW inlet within 0.6
∽
1kg/
㎠
. Install a pressure reducing valve when or
connecting it to water supply pipe directly. using a feed
pump
hot water tank
expansion
vessel
hot water oulet
piping
directly
higher than
1m
the side
the side
Check
valve
Circulation pump
nitrogen
vessel
20A tube
use a relief
pressure valve
Circulatio
n pump
heating
water
return
oulet
valve
Check
valve
nitrogen
vessel
Circulation pump
Piping to
prevent
natural
circulation
9페이지
Summary of Contents for KRH-35B
Page 19: ...5 DIRECTION FOR ASSEMBLY 5 1 PART EXPLODED VIEW 19페이지 ...
Page 38: ...10 Memo 38페이지 ...
Page 39: ...11 Warranty 39페이지 ...