10
Water pipe routing
Connect the cold water supply (15) via the pressure reducer
(10) to the drain valve (14).
13
14
10
15
16
12
22
Fig. 17
Make a connection (16) for cold water supply between drain
valve (14) and elbow (13 – lower pipe) on water heater.
Route the hot water pipe (22) from the elbow with integrated
breather valve (12 – upper pipe) to the hot water appliances.
Gas connection
Refer to AS5601 – Gas Installations, for gas pipe sizing.
The gas inlet connection is a SAE 45° Flare 1/2 - 20UNF type.
For connection to 8 mm steel piping Truma povides an adapt-
er UNF 1/2 in. x RVS 8, part no. 70020-02700.
5/16 in.
8 mm
RVS 8
Pressure
Testpoint
SAE 45° Flare
1/2 in. - UNF
Fig. 18
Before connecting to the water heater make sure that the gas
lines are free from dirt, chips and such!
Route the pipes in such a way that the appliance can be
removed again for servicing.
Before starting up for the first time, verify the correct installa-
tion in accordance to the requirements of AS5601 (check for
gas leaks and check the gas pressure). Do not check for gas
leaks with a naked flame.
Installation of the elbow water connectors
Push elbow fitting without aeration valve
(13) as far as
possible onto the Truma UltraRapid HWS cold water con-
nection tube (lower tube), and push the elbow fitting with
built-in aeration valve
(12) as far as possible onto the
Truma UltraRapid HWS hot water connection tube (upper
tube). Pull in the opposite direction to check that the elbow
fittings are securely attached.
Slide venting hose with an outer diameter of
11
mm (20) onto
the hose nozzle of the aeration valve (21) and route to the out-
side free of kinks. Radius of arc must not be less than 40 mm.
Cut off the venting hose about 20
mm below the vehicle floor
at a 45° angle to the direction of travel.
45º
20 mm
21
13
12
20
Ø 12 mm
Fig. 14
In industrial bulk packs the water connections are preinstalled
and have to be tightened after the water pipes have been con-
nected. Please check for leaks before starting up for the first time.
Installation of the drain valve
Install the drain valve (14) at a place which is easily accessi-
ble, near the water heater.
The drain valve must be installed lower than the cold water
connection of the Truma UltraRapid HWS.
Drill a hole with 18 mm diameter and pass through the dis-
charge tube. Fasten drain valve with two screws. The draining
is to be directly to the outside at a position protected against
splash water (apply splash guard, if necessary).
Ø 18 mm
14
Fig. 15
Installation of the pressure reducer
The pressure reducer (10) must be fitted between the drain
valve and water pump in accordance with the
direction of
flow.
Fasten the pressure reducer to the floor.
10
Fig. 16
Содержание BGA 14
Страница 15: ...Notes...
