E93.1803.901 HW
115
Conversion from natural gas to propane
Conversion of the heater to a different gas type must be performed by a certified technician.
Parameter 92 and 93 must be set correctly!
Wrong setting can lead to damage to the appliance or shorten the lifespan of the appliance!
The warranty of the device will expire if a wrong selection has been made.
Before starting conversion: close the gas supply and switch off the electrical power!
Use only parts/conversion kits obtained from
Eco Heating Systems Groningen B.V. and intended to be
used with this particular water heater.
Every conversion kit is provided with instructions how to
assemble the kit to the water heater.
Converting the water heater to propane (LP) requires the following actions (details below).
1. Check water heater model
2. Mount the orifice
3. Set parameter 92 and 93
4. Adjust the O
2
/ CO
2
percentage
5. Confirmation: apply the propane sticker and mark the boxes
1. Check water heater model.
Check if you have a CB 85, 105, 125 or 155 water heater. The model number is
on the data plate, on the inside of the water heater casing, top side.
2. Mount the orifice:
Converting the water heater to propane is done by placing a propane
orifice between gas valve and venturi. By using the correct orifice size
(see table), the measured CO
2
(O
2
) percentage in the flue gas will al-
ready be close to the desired value.
Installing the orifice (see also picture):
Required tools: wrench 55, hex key 5 mm and hex key 4 mm.
1. Close the external gas shutoff valve and disconnect the elec-
trical power before opening the water heater.
2. Use a wrench to open the coupling in the gas line in the water
heater. The three screws, with which the venturi is mounted
onto the fan, can now be removed.
3. Venturi and gas valve can now be separated. The orifice is to
be placed between venturi and gas valve. The rounded side
of the orifice must be on the side of the gas valve.
The orifice must be mounted into the gas entrance of the ven-
turi and secured with the rubber gasket.
4. Venturi and gas valve can now be reconnected.
5. Remount the gas valve and the venturi onto the fan. Reassem-
ble the coupling in the internal gas line.
6. Open the external gas valve.
7. Check for gas leaks.
8. Reconnect the electrical power
9. Check again for gas leaks during burning.
Required parts:
(Installation Manual “Accessories”)
Propane orifice CB 85 and CB 105
Propane orifice CB 125
Propane orifice CB 155
Water
heater type
Orifice Inner Diameter
CB 85
6.2
CB 105
6.2
CB 125
7.2
CB 155
7.5
Orifice
Gasket
Sticker
WARNING
Содержание CB 105 HW
Страница 69: ...E93 1803 901 HW 70 12 6 Electrical schematic...
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Страница 71: ...E93 1803 901 HW 72 12 7 Ladder Logic Diagram LOW MAINS VOLTAGE VOLTAGE...
Страница 127: ...E93 1803 901 HW 128 22 SPARE PARTS CB 85 HW CB 105 HW and CB 125 HW exploded view...
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Страница 129: ...E93 1803 901 HW 130 CB 155 HW exploded view...
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