Ferroli Rendimax 23 CE, Rendimax 30 CE, Rendimax 36 CE, Rendimax 16 CE Installation And Operating Instructions Manual
RENDIMAX CERENDIMAX CE
RENDIMAX CERENDIMAX CE
RENDIMAX CE
CAST IRON GAS-FIRED BOILERCAST IRON GAS-FIRED BOILER
CAST IRON GAS-FIRED BOILERCAST IRON GAS-FIRED BOILER
CAST IRON GAS-FIRED BOILER
for central heatingfor central heating
for central heatingfor central heating
for central heating
Installation and operating instructionsInstallation and operating instructions
Installation and operating instructionsInstallation and operating instructions
Installation and operating instructions
S.p.A.
2
S.p.A.
Contents
1. Description
2. Dimensions and technical specifications
3. Installation
4. Adjustment
5. Gas conversion
6. Maintenance and cleaning
7. Troubleshooting
3
S.p.A.
Fig. 1
Version "P.V."Version "BASE"
A
850
B
L
G
H
284
1
C
E
D
590
660
E
2
3
C
510
E
F
590
660
3
2
1
4
5
1. DESCRIPTION
1.01 Introduction
RENDIMAX CE boilers are heat generators for central heating and domestic hot water production.
The standard version is designed to work with natural gas.
To use the boiler with L.P.G., on-site conversion must be carried out following the instructions given
below. This conversion must be done by our local Customer Technical Service Center.
2. Dimensions and technical specifications
2.01 Dimensions
KEY
1 C.H. flow inlet
2 C.H. flow outlet
3 1/2" gas inlet
4 Safety valve (only PV vers)
5 Expansion vessel (only PV vers)
4
S.p.A.
112
3
11
10
8
6
13
7
9
2
4
5
Fig. 2
2.02 Components description
View with open door
KEY
1 Boiler thermostat
2 Boiler temperature / pressure gauge
3 Safety valve
4 Gas valve
5 Circulation pump (only PV version)
6 Boiler drain cock
7 Pilot burner
8 Piezo-Igniter
9 Gas-Manifold
10 Boiler main switch
11 Filling cock
12 Cock
13 Flue thermostat
5
S.p.A.
Heat output Heat rate
Boiler
Rated Adjiustable up to: Min.Rated
Rendimax 16 CE
Rendimax 23 CE
Rendimax 30 CE
Rendimax 36 CE
kW
16,2
23,0
29,5
36,0
kcal/hr
14.000
19.800
25.400
31.000
kW
11,0
16,0
20,0
24,0
kcal/hr
9.500
13.800
17.200
20.600
Section
nr.
3
4
5
6
kW
12,7
18,4
23,0
27,6
kcal/hr
11.000
15.800
19.800
23.800
kcal/hr
15.500
22.000
28.200
34.400
kW
18,0
25,5
32,8
40,0
Natural gas
Boiler
Rendimax 16 CE
Rendimax 23 CE
Rendimax 30 CE
Rendimax 36 CE
Nozzle
nr.
2
3
4
5
L.P.G.
Ø Main
burner
mm
2,45
2,35
2,35
2,35
Ø Pilot
burner
mm
0,35
0,35
0,35
0,35
Rated
gas
pressure
mbar
13,0
15,2
14,2
13,5
Ø Main
burner
mm
1,55
1,50
1,50
1,50
Ø Pilot
burner
mm
0,225
0,225
0,225
0,225
Rated
gas
pressure
mbar
35
35
35
35
Boiler weight
kg
PV
vers.
80
94
112
/
BASE
vers.
70
84
102
126
Connections
Boiler
Rendimax 16 CE
Rendimax 23 CE
Rendimax 30 CE
Rendimax 36 CE
A
mm
400
400
500
600
B
mm
57
62
72
82
C
mm
33
33
33
58
D
mm
100
110
130
150
E
mm
63
25
36
50
F*
mm
73
35
46
-
G
mm
515
515
515
525
H*
mm
635
635
635
-
L
mm
615
615
615
625
Return
1
1"
1"
1"
1"
Flow
2
1"
1"
1"
1"
Gas
inlet
3
1/2"
1/2"
1/2"
3/4"
Max
working
pressure
bar
4
4
4
4
Boiler water
content
lt.
7,3
9,0
10,7
12,4
Expans.
vessel
vol.
6
6
8
-
lt.
Boiler
Rendimax 16 CE
Rendimax 23 CE
Rendimax 30 CE
Rendimax 36 CE
Rated
1,94
2,70
3,47
4,23
Min.
1,16
1,69
2,46
2,95
Gas flow rate at the
burner for L.P.G. kg/hr
Rated
1,50
2,08
2,68
3,27
Min.
0,90
1,31
1,63
1,96
Gas flow rate at the
burner for N.G. m /hr
3
Connection dimentions
*Only P.V. version*Only P.V. version
*Only P.V. version*Only P.V. version
*Only P.V. version
3. INSTALLATION
Installation must be carried out by specialist companies only in accordance with all instructions and
current regulations.
You are advised to include gate valves between the boiler and the C.H. system so that the boiler can
be isolated from the system if necessary.
Notes: If the path followed by the C.H. flow outlet and return inlet pipes is such as to allow for the
formation of air pockets at certain points, you are recommended to fit an air valve at these points.
The diameter of the flue connection pipe must not be less than that of the coupling on the draft
diverter. From the draft diverter, it must have a vertical section of not less than one and a half meters.
When sizing and installing flues and the flue connecting pipe, current regulations must be respected.
If the fuel duct pass through flammable wall it has been well insulated.
2.03 Technical data (Max. working temperature 100
°C)
6
S.p.A.
230V
50Hz
23
49
49
23
L
8
9
10
98
N
1
4
1
2
3
2
3
44
1
C
92
11
114
160
32
63
12
13
6
5
4
2
7
92
1
63
2
C
1
98
142
324357968 1513
10
11 12 1614
160114
32
44
230V
50Hz
LN
Fig. 3
Connection between boiler and chimney has to be sealed.
The rated flow rate of gas counter has to be sufficient for the whole connected appliance.
Be careful that the boilers connections are free of mechanical tensions.
Connect the gas using a rigid pipe and including a gas cock.
The boiler must be connected to a 230 Volt - 50 Hz single phase line (phase/neutral) by means of
terminal board of approved socket. A 5 A max. fuse should be included between the boiler and line.
It is important to ensure that the boiler is connected to an efficient earth system. The terminal board
for connecting the boiler to the room thermostat (if used) is inside the control panel (follow the
electrical wiring diagram fig. 3).
3.01 Electrical connection
The electrical connections has be carried out according the following electrical schema. If the boiler
is installed below the level of the C.H. system, you are recommended to install a sensor against the
water absence.
NB: The manufacturer declines all responsibility for damage to persons or things deriving from
poor earthling of the appliance.
DIAGRAM OF ELECTRICAL CONNECTION
Key
23 Thermocouple
32 C.H. pump (if fitted)
44 Gas valve coil
49 Safety thermostat
63 Boiler thermostat
BASIC ELECTRICAL WIRING DIAGRAM
92 Flue gas thermostat
98 Main switch
114 Water pressure switch (not fitted)
160 Auxiliary contact
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