Daikin EKHTSU200AA, Руководство по установке

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Installation manual
8
EK260AA + EKUHWHTA
Domestic hot water tank with UK kit for air to water heat pump system
4PW53247-1B
I
NSTALLATION OF THE
EKUHWHTA
KIT ON THE DOMESTIC HOT WATER TANK
Piping requirements
■
Tundish
Install the tundishes in a vertical position within a maximum of
500 mm away from the temperature and pressure relief valve on
the domestic hot water tank and the expansion relief valve
included in the EKUHWHTA kit.
■
Tundish pipework
Tundish pipework must be 22 mm metal pipe with a minimum
vertical length of 300
mm below the tundish. Maximum
permitted (equivalent) length of 22 mm pipework is 9 m. Each
bend or elbow is equivalent to 0.8 m of pipework.
All pipework must have a continuous fall.
Sizing of copper discharge pipe D2 for common temperature
relief valve outlet sizes
■
All pipework and fittings must be flushed free of all flux and debris prior to the fitting of controls of this kit. Failure to do this may
cause irreparable damage to the controls.
■
All cautions as under chapter "Installation of the EKHTSU domestic hot water tank" on page 4 remain of extreme importance and
are equally valid in this chapter.
Fixed grating
Trapped
effluent water
>300 mm
≤
500 mm
D2
D1
11
7
7
7
2
7
3
13
8
4
12
6
5
≤
500 mm
9
13
10 D1
D2
>300 mm
C
H
5
10 D1
≤ 500 mm 500 mm ≤ 500 mm
Valve
outlet
size
Discharge pipe
size D1
Discharge pipe
size D2
from tundish
Maximum
resistance
allowed,
expressed as a
length of straight
pipe (i.e. no
elbows or bends)
Resistance
created by
each elbow
or bend
15 mm 15 mm 22 mm up to 9 m 0.8 m