Installation manual
26
Figure 21: Water Flow Check
Figure 22: Successfully running test screen
If carrying out start up in cold weather, commission the heat pump heating only the buffer. Once it reaches the required
temperature open each zone slowly and in series, especially for under floor heating. If you have selected Schematic 1
or 3 (Space heating only or Bivalent space heating), move now to section 4.2.10 ‘Heating Curves’ to complete the
commissioning process.
NOTE:
FOR
SAFETY
REASONS
,
IF
THE
HEAT
PUMP
PRESSURE
EXCEEDS
38
BAR
/
TEMPERATURE
EXCEEDS
60°C,
THE
COMMISSIONING
WILL
BE
ABORTED
. U
NDER
THESE
CONDITIONS
,
MEASURES
SHOULD
BE
TAKEN
TO
ALLOW
THE
TEMPERATURE
TO
DROP
BELOW
60°C,
I
.
E
.
A
ZONE
SHOULD
BE
OPENED
.
4.2.5 DHW
SETUP
Before commissioning the DHW, a number of checks must be carried out, as shown in figure 23. When you have ticked
each box to confirm each DHW check, ‘Next’ will bring you back to the installer menu, where you can now select
‘Electrical Connections (DHW)’.
NOTE: I
T
IS
POSSIBLE
TO
USE
SPACE
HEATING
WITHOUT
COMPLETING
THE
DHW
SETUP
. T
HIS
CAN
BE
DONE
BY
SELECTING
‘N’
ON
THE
DHW
SETUP
SCREEN
WHERE
IT
ASKS
IF
THE
CYLINDER
IS
CONNECTED
(
SEE
FIGURE
23).
T
HIS
MAY
BE
NECESSARY
WHERE
THE
DHW
IS
NOT
YET
CONNECTED
OR
WHERE
THE
CYLINDER
HAS
NOT
YET
BEEN
FILLED
. W
HEN
THE
CYLINDER
IS
READY
,
IT
WILL
BE
NECESSARY
TO
RETURN
TO
THIS
STEP
OF
THE
COMMISSIONING
AND
SELECT
‘Y’
INSTEAD
FOR
“C
YLINDER
C
ONNECTED
?”
TO
SET
UP
DOMESTIC
HOT
WATER
.
4.2.6 E
LECTRICAL
CONNECTIONS
(DHW)
This menu provides a list of electrical connections that should be made prior to commissioning the domestic hot water
cylinder. You must check and confirm all connections in order to make the ‘DHW Test’ available in the installer menu.
The numbers listed on the LHS of the screen refer to the following;
On Screen On Controller On Connection Block
S-DO-0Q2 Relay 2 (to DHW-SH valve) Connection 2 on live block
S-DO-07 Relay 7 (Immersion DHW) Connection 4 on live block
S-AI-01 NTC-DHW (DHW temperature probe) -
Table 3: Electrical Connections screen information