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6.0
GENERAL REQUIREMENTS
The Lochinvar TTW comes with the following documents and accessories:
An installation, commissioning and maintenance instruction guide for the installer.
3 spare fuses and 3 spare nuts for the installation of the burner plate (this is attached to the front of the gas
valve).
Spare flue gas plugs
One gas conversion sticker
One Torx key T40
One allen key no. 3
Bottom part of Siphon
Lochinvar will supply a suitable shunt pump with every TTW water heater, this must be
installed with the TTW to maintain the correct flow
On delivery, immediately check that the water heater is complete and without any defects. Report any damage
immediately to Lochinvar Limited.
The Lochinvar TTW has been designed to operate trouble free for many years. These instructions should be
followed closely to obtain the maximum usage and efficiency of the equipment. PLEASE read the instructions fully
before installing or using the appliance.
NOTES
1
All water heaters are supplied as twin pipe model.
2
Using propane, butane and B/P, maximum fan speed
needs to be reduced (parameter P4BD)
3
Below a table is given in which the min. and max. gas
supply pressures are listed according to EN437:
p nominal
[mbar]
G25
25
G20
20
G31
30
37
G30
50
p min
p max
[mbar]
[mbar]
20
30
17
25
25
35
25
45
43
57
4
Emissions measured during unit certification.
5
Maximum combined resistance of flue gas and air
supply piping at high fire.
6
230 Vac is necessary for the water heater to function.
If a 400 Vac water heater pump is applied, 400 Vac
must be connected to the appliance so the power
supply for the pump can be delivered by the system.
(An optional safety switch for the pump motor must be
added externally).
14
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