DeDietrich AWHP 6 MR Installation And Service Manual page 53

AWHP MIT-IN iSystem
B TS + B
1 2
7
5 6
BUS
9
AWHP
24/09/2012 - 300027606-001-01
4 Other
Operating principle
4 No back-up requested:
4 Back-up requested:
n Boiler fitted with a control panel without TAM input
SCU
0-10V S AMB C S AMB B
+ - 4 3 2 1 2 1
A
S SYST + TA - S ECS S EXT S DEP C
2 1 2 1 2 1 2 1
3
4
°C °C
°C °C
EA63 EA61
EA59
Set the boiler thermostat to the same value as HEAP MAX:.
Heating temperature setting = HEAP MAX:.
The boiler continues to provide DHW. Contacts AL1 and AL2 are
both open.
The AL2 contact closes.
The AL1 outlet is powered up: If the boiler is in domestic hot water
mode, the back-up pump is not tripped as the K relay is open. The
back-up pump is tripped when the domestic hot water load pump
stops.
PCU
S AMB A
2 1 2 1
S DEP B
2 1 2 1
10
11
MIT-IN H
HK22
Not used: Do not connect anything to the terminal block.
A
N L
12
L N
4. Installation
8
CS
M002806-A
52