25
INSTALLATION INSTRUCTIONS
Clearance
The appliance must be in an accessible location. Sufficient clearances shall allow access to,
and removal of, all serviceable components. The following clearances should be followed.
Water Supply
Where the water supply pressure exceeds 10 bar, an approved pressure reducing device
must be fit at the inlet of the appliance. To achieve the maximum rated flow a minimum
water supply pressure of
2
.2 bar is required at the appliance inlet. The unit will operate at
lower supply pressures but the maximum flow rate will not be achieved. Most installations
will use high temperature set points which will reduce the available flow rate and heat
exchanger pressure drop, and therefore less pressure will be required at the inlet. See the
pressure chart on
page 53.
Contact Rinnai or your supplier for 'gravity fed' or 'low pressure'
hot water installations.
Water pipe sizing and layout should be designed correctly to ensure the given water flows
from the appliance are available. All hot water pipework should be insulated to optimise
maximum performance and energy efficiency.
Water Connection
Connect the hot and cold water supply pipes as shown on
page 27.
An approved isolation
valve and strainer MUST be installed in the cold water inlet pipe. An approved isolation valve
and draining point should be installed in the hot water outlet pipe. There must be a union or
release fitting on the heater side of the isolation valves. An unvented kit to local regulations
must be installed in the pipework when the system is closed (i.e. has a flow and return, or
tank). Positions of the cold water inlet, hot water outlet and gas connections are shown on
page 42-43
.
If the heater is in a hard water area a suitable water conditioning device must be installed to
prevent the build up of limescale within the heat exchanger. Heat exchangers damaged by
scaling are not covered by the manufacturer’s warranty.
Gas Connection
Check pipe sizing required for the heater input. The heat input for the water heater is shown
on
page 44-45
. The size of the gas meter (or regulator) and pipework must be sufficient for
all appliances on the main. Sufficient gas must be available at the appliance if correct
operation is to be expected; insufficient gas will damage the unit. An approved gas isolation
valve must be fitted at the gas inlet. A union or release fitting should be installed after the
isolation valve.
Electrical Connection
The appliance must be earthed. The appliance is suitable for 23
0
VAC – 50Hz mains only
and all wiring must be carried out to local regulations.
Description
pH
Total Dissolved
Solids (TDS)
Total Hardness
Chlorides
Magnesium
Calcium
Sodium
Iron
Maximum Recommended
Levels
6.5 - 9.0
600 mg/litre
150 mg/litre
300 mg/litre
10 mg/litre
20 mg/litre
150 mg/litre
1 mg/litre
From Combustibles
From Non-Combustibles
Clearances in
mm
Internal Units
External Units
Internal Units
External Units
Above
300
300
50
50
Behind
0
0
0
0
In Front
600
600
600
600
Sides
50
150
15
15
Below
300
300
50
50
Flue pipe
0
-
0
-
Summary of Contents for R E U - K M2635FFUDHD-E
Page 20: ...20 OPERATION Infinity K32e and HDC1500e Infinity K32i and HDC1500i...
Page 21: ...21 OPERATION Infinity K26e and HDC1200e Infinity K20i K26i HDC1000i and HDC1200i...
Page 33: ...33 CONDENSATE DISPOSAL...
Page 42: ...42 DIMENSIONS Infinity K32i and HDC1500i Infinity K32e and HDC1500e...
Page 43: ...43 DIMENSIONS Infinity K20i K26i HDC1000i and HDC1200i Infinity K26e and HDC1200e...
Page 49: ...49 FLOW CHART...
Page 50: ...50 WIRING DIAGRAM Infinity K32 5 amp...
Page 51: ...51 WIRING DIAGRAM Infinity K20 K26 5AMP FUSE...
Page 52: ...52 DIAGNOSTIC POINTS Infinity K20 K26 Infinity K32 Y Y...
Page 53: ...53 WATER FLOW CHARACTERISTICS Infinity K32 Infinity K20 K26...
Page 54: ...54 LETTER OF COMPLIANCE...
Page 55: ...55 CE CERTIFICATE...
Page 56: ...56 CE CERTIFICATE...
Page 58: ...58 COMMISSIONING SHEET...
Page 59: ...59 SERVICE RECORD...
