Grant Aerona3 HPID12R32, Инструкции по установке и обслуживанию

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section 6: Electrical Page 28
figure 6-10: S-plan (HW priority relay) system connection diagram
terminals
19 Hot water
20 Heating
18 and 21 Common
this volt free remote contact is provided by the Grant EP002
Interface relay box. refer to sections 6.8 and 6.10.
! nOtE !
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.
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
Twin Channel
Programmer
OFF OFF ON ON
HW HT HW HT
N L 1 2 3 4
Limit 80°C /
Cyl Stat 50°C
2
C
2
C
1
Room
Stat 1
2 1 3
Room
Stat 2
2 1 3
1 2 3 4
Wiring Centre
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Orange
Orange
Orange
Grey
Grey
Brown
Blue
Green/Yellow
A1
5A
11
L N E
240V
50HZ
Blue
Earth and some Neutral connections
have been excluded for clarity.
14
12
A2
N
2-Port Zone Valve
Brown
Blue
Green/Yellow
Motor HTG
1
2-Port Zone Valve
Green/Yellow
Brown
Motor HTG
2
Grey
Brown
Blue
Green/Yellow
HW
Motor
RL1 RL2
RL3
DHW
N P
CH
Grant EP002 Heat Pump Interface