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4.2 Pipes from Engine to Calorifier
The coolant water pipes from the ship's engine to the calorifier
should be as short as possible, so that the increase in engine cool-
ant capacity is kept to a minimum and no extra expansion space is
required. These pipes must be installed so that they are absolutely
self-bleeding.
The pipes should have the same cross-section as the calorifier/heater
connections on the ship's engine, so that no extra resistance is cre-
ated.
Also consult the engine supplier's instructions.
Use a good quality reinforced hose or copper pipes.
Always connect metal pipes with short lengths of hose to the
engine and the calorifier. The hose will accommodate vibration
and prevent the pipes splitting.
The reinforced hose should be resistant to a temperature of at least
100˚C (212˚F), and a pressure of 4 bar (4 kgf/cm
the same hose as for the tap water - Vetus Article Code: HWHOSE16.
Fit each hose connection with a stainless steel hose clamp.
In order to reduce heat loss with the engine off, it is recommended
that the pipes and fittings are insulated.
4.3 Installing the Fittings
On the tap water side of the calorifier, use only corrosion-resistant
fittings (stainless steel or brass).
Never use fittings made of steel or iron!
4.4 Pressure valve/non-return valve
The pressure valve and the non-return valve have been combined in a
single fitting. Mount this pressure valve/non-return valve (13) on the
tap water intake. The pressure valve has been set to 6 bar (6 kgf/cm2.
As the water heats up, the pressure valve will operate, water droplets
and a little water loss is normal. If you do not want water running
about freely, then connect the outlet connection to a pressure-free
drain pipe. When assembling all accessories and fittings, use a good
quality, removable screw-thread sealant. Disassembly may be neces-
sary for maintenance, draining and preparation for winter!
4.5 Pipes for Tap Water
Use a good quality reinforced hose, stainless steel or copper pipes for
the tap water pipes. Always connect pipes to the calorifier with short
lengths of hose. These lengths of hose will accommodate vibration
and prevent the pipes splitting.
The reinforced hose must be of foodstuffs quality and resistant to at
least 100˚C (212˚F) and a pressure of 8 bar (8 kgf/cm
Insulate the pipes and fittings to prevent unnecessary heat loss.
Vetus supplies a hose which is suitable for tap water. This hose has
an internal diameter of 16 mm., is tasteless, non-toxic, resistant to
temperatures up to 160˚C (320˚F), with a working pressure of 8 bar
(8 kgf/cm
2
, 116 psi).
Article Code: HWHOSE16.
vetus® Calorifiers WHxxD
(see pages 14 and 15)
c
aution
2
, 58 psi). You can use
(see page 17)
W
!
arning
(see page 15)
2
, 116 psi).
4.6 Heating Element
There is an electrical heating element, power 1500 Watt / 230 V, fitted
in the calorifier. The heating element is controlled by a thermostat.
Connect the heating element as shown in the wiring diagram. Con-
nect the earth terminals, both from the boiler and the heating ele-
ment, to the earthing point on the boat!
A different heating element can be fitted as an alternative. The fol-
lowing electrical heating element (with adjustable thermostat) is
available:
Art. code
Power / Voltage
WHEL220
1000 W / 230 V
WHEL22500
500 W / 230 V
WHEL110
1000 W / 120 V
All heating elements are fitted with external screw thread G 1 1/4.
Use a right-angled open-ended spanner or an open ring spanner,
size
55 when assembling and disassembling the heating element.
Clean the screw thread if necessary and fit the heating element us-
ing hemp and liquid packaging to seal the screw thread connection.
5
Technical Data
Type
WHD
020
Tap Water Tank
Capacity, litre
20
Imp. gallon
4.4
US gallon
5.3
Heated
0,37 m
2
0,52 m
surface
4 ft.
2
Max.Pressure
Material
AISI 316L, thickness 1.2 mm (
Heat Loss
About 12˚C (54˚F) per 24 hours
Outer Tank (Engine coolant)
Capacity, litre
2
Imp. gallon
0.44
US gallon
0.52
Connections
Max.Pressure
Material
AISI 316L, thickness 1.2 mm (
Insulation
Polyurethane, 35 mm (1
Electric Heating Element
Max. power
Connection
Pressure Valve
Setting
Weight
Empty
11 kg
24 lbs
ENGLISH
WHD
WHD
WHD
031
045
055
31
45
55
6.8
9.9
12.1
8.2
11.9
14.5
2
0,71 m
2
0,85 m
2
1,08 m
5.6 ft.
2
7.6 ft.
2
9.1 ft.
2
11.6 ft.
6 bar (6 kg/cm
2
, 87 psi)
1
/
")
16
3
5
7
0.66
1.09
1.54
0.79
1.32
1.84
G 1/2, male thread
3 bar (3 kgf/cm
2
, 43 psi)
1
/
")
16
3
/
") thick with AISI
8
304 cover
1500 Watt
G 1 1/4, female thread
2
6 bar (6 kgf/cm
, 87 psi)
13 kg
16 kg
18 kg
28 lbs
35 lbs
40 lbs
51 lbs
050613.01
WHD
075
75
16.5
19.8
2
2
9
1.97
2.37
23 kg
5
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