Grant Aerona3 HPID12R32, Инструкции по установке и обслуживанию

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section 6: Electrical Page 29
figure 6-11:
S-plan (HW priority relay including boost kit) system connection diagram
the control system shown in this diagram ensures that there can be no demand for space heating and hot water at the same
time.
In order to achieve this type of operation, the programmer mUst not have a built-in connection between the live connection
(driving the timer) and the two programmer switches.
the programmer shown in this diagram is an example of one that meets this requirement, as the installer is required to fit links
between the mains live and the programmer swithces for mains voltage systems.
this volt free remote contact is provided by the Grant EP002
Interface relay box. refer to sections 6.8 and 6.10.
! nOtE !
terminals
19 Hot water
20 Heating
18 and 21 Common
ASHP Terminals
1
2
3
4
5
6
7
8
17
18
19
20
21
22
23
24
25
Hot Water (Yellow)
Common (Red)
Link
Heating (Blue)
4 Core ( 3 + E )
Volt free connections from
Heating and Hot Water zone
valves to terminals 18 - 20 on
ASHP terminal PCB via relays
on Grant EP002
3 2 1
240V
50HZ
L N E
Double Pole
Isolator
5A
2
C
Green/Yellow
Blue
Brown
Wiring Centre 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Orange
Orange
Orange
Double
Pole
Isolator
13A
Green/Yellow
Brown
Blue
1
A1
Blank
Spacer
A2
2 4 3
N L
Green/Yellow
Blue
Brown
Grant Automatic DHW Boost Kit 2
Hot Water
Immersion
Heater
Green/Yellow
Brown
Blue Motor
HTG
2
3 1 2
A1
11
A2
N
2-Port Zone Valve
14
12
Hot Water
Priority Relay
Brown
Blue
Green/Yellow
Motor HTG
1
2-Port Zone Valve
Brown
Blue
Green/Yellow
Grey
Grey
Grey
HW
Motor
2
C
1
Twin Channel
Programmer
OFF OFF ON ON
HW HT HW HT
N L 1 2 3 4
Limit 80°C /
Cyl Stat 50°C
Room
Stat 1
2 1 3
Room
Stat 2
2 1 3 1 2 3 4
Earth and some Neutral connections
have been excluded for clarity.
RL2
RL3
RL1
DHW
N P
CH
Grant EP002 Heat Pump Interface
4