15
Fig. 16
Alpha SolarSmart 150 - Installation
3.
A self adhesive label is supplied in the
Solar Valve Kit. This label must be
located as shown in Fig. 17, over the
boiler hot water thermostat knob after it
has been set to its maximum position, i.e.
fully clockwise to position No. 9. This will
ensure that the hot water temperature
from the boiler will be approximately
60°C and will prevent the knob from
being adjusted to a lower temperature.
Note: The User must be informed of the
purpose of this label, which must not be
removed.
CD25, 28X
CD25, 28X with Premier Pack
CD25, 28, 35C
CD25, 28, 35C with Premier Pack
Notes: 1. Join together hot water outlets B and D to provide a single hot water supply immediately after boiler installation.
2. When connecting the Solar Valve to a CDX boiler the filling loop connection of the Solar Valve must be plugged with a ½"
brass plug.
3. When connecting the Solar Valve to a CDC boiler isolate the filling loop after filling the central heating system.
23
20
M
½" Brass
plug
L
J
H
K
G
I
C
B
F
D
E
A
65
70
45
70
58
95
37
N
M
Filling loop
N
23
20
C
B
F
D
E
A
65
70
45
70
58
95
37
G
I
L
J
H
K
M
N
23
20
C
B
F
D
E
A
65
70
45
70
58
95
37
G
I
L
O
P
J
H
K
Filling loop
A - Heating flow (22 mm)
B - Hot water outlet (15 mm)
C - Gas inlet (22 mm)
D - Hot water outlet from Solar valve (15 mm)
E - Heating return (22 mm)
F - Pressure refief valve outlet (15 mm)
G - Water inlet from Solar cylinder (15 mm)
H - Cold water inlet filter
I - Solar Valve
J - Heating return valve
K - Heating flow valve
L - Heating drain point
G
I
23
20
L
O
P
M
J
H
K
C
B
F
D
E
A
65
70
45
70
58
95
37
N
½" Brass
plug
M - Condensate trap
N - Condensate discharge pipe
O - Cyclone drain point (if applicable)
P - Wall jig (if applicable)
0
1
2
3
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
bar
0
4
3
2
1
RESET
A
D
B
C
SELECTOR
THERMOSTAT
THERMOSTAT
OFF
IMPORTANT
MUST
This Combi boiler is fitted to an
Alpha Solar system and the hot
water thermostat
always be
set at maximum (No.9)
Fig. 17
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