Grant Aerona3 Series, Installation And Servicing Instructions

Page: 52 / 88

Section 12: Electrical Page 52
Figure 12-16: Hybrid control panel wiring diagram
Air Control Thermostat
OIL ONLY
HYBRID
Oil/Hybrid Switch
(See note)*
1A 2A
4B 5B
Boiler
On/Off
2 C
Limit
Thermostat
FUSE 5 X 20 (F2)
FUSE 1 X 20 (F1)
L N E
Double Pole
Lockable
Isolator
45 A
230V 50HZ
Via Circuit
Breaker
Power Meter
15 R
Heat Meter
L
N
Domestic Control 4
3
LIVE
Burner Switched
10
LIVE
2
1
Burner Permanent
11
LIVE
11
10
9 8 7 6 5
NO NC NO
C C
R 1
230V
11
10 9 8 7 6 5
NO
NC
NO
C C
Boiler Control Thermostat
11
21
24 22
14 12
A2
Relay No 2
A1
11 21
24 22
14 12
A2
Relay No 3
A1
11 21
24 22 14 12 A2
Relay No 4
A1
11 21
24 22 14 12 A2
Relay No 5
A1
11
21
24 22
14 12 A2
Relay No 6
A1
Burner
12
NEUTRAL
Burner
13
EARTH
Pump
14
LIVE
Pump
15
NEUTRAL
Pump
16
EARTH
Motorised Valve
17
LIVE
Motorised Valve
18
NEUTRAL
Motorised Valve
19
EARTH
HP Terminal PCB 18
23 24 25 26
Heat Pump
20
EARTH Heat Pump
21
NEUTRAL Heat Pump
22
LIVE
HP Terminal PCB 19 HP Terminal PCB 20 HP Terminal PCB 46
Domestic Control 5
NEUTRAL
Domestic Control 6
EARTH
Low Temp
Demand - 50
7
8
9
High Temp
Demand - 65
Central Heating
Demand
R 2
R 1
230V
R 2
Hybrid Wiring Center
1A
2A
3A
8 R
9 BR
10 BR
16 BR
13 BR
14 BR
8 R
1BR
2 BL
6 BR
7 BR
11 R
12 R
18 R
19 R
20 BK
21 BK
23 R
24 BK
1 BR
2 BL
7 BR
7 BR
7 BR
7 BR
5 BR
11 R
11 R
12 R
12 R
12 R
12 R
12 R
12 R
16 BR
16 BR
15 R
15 R
17 BK
20 BK
20 BK
20 BK
20 BK
22 BK
22 BK
Earth and some Neutral connections
have been excluded for clarity.
7 BR
13 BR
14 BR
* Note: If using dual
cylinder thermostat, Set
50°C cylinder stat to '0'
when using 'Oil Only'
switch or only use the
single cylinder thermostat.
Wiring Abbreviation
BK - Black
BL - Blue
BR - Brown
R - Red
O - Orange
Y - Yellow
18 O
18 Y
18 O
18 Y