UK.PPC150
-
300(SL)/R32
November
2022
—Version 2.1
Domestic hot water tank for Daikin Altherma Monobloc (R32)
5.
After completing the installation, the installer must complete the
Installation, commissioning and service record log book, found at the end
of this document.
4.3.3
Filling the domestic hot water tank
1.
Open every hot water tap in turn to purge air from the system pipework.
2.
Open the cold water supply valve.
3.
Close all water taps after all air is purged.
4.
Check for water leaks.
5.
Manually operate the temperature and pressure relief valve of the
domestic hot water tank to ensure a free water flow through the discharge
pipe.
NOTICE
To operate the system, the domestic hot water tanks needs to be
filled completely. Turning on the system when the tank is not full
can damage the integrated immersion heater and cause electrical
errors.
On
-
Board Pump:
If there is no possibility for water circulation on
the secondary side, an automatic bypass valve should be fitted.
Water circulation could be via a towel rail, a by
-
pass valve or a
radiator without a TRV.
4.3.4
Insulating the water piping
The piping in the complete water circuit MUST be insulated to prevent
reduction of heating capacity.
4.4
Connection of electrical wiring
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
Immersion heater comes complete with integral control thermostat and a high
limit cut
-
out. If a replacement is required please order them from Daikin UK,
installation of a non
-
approved immersion may affect your warranty.
Electrical supply to the immersion heater must be installed by a qualified
electrician. The fuse rating should be sized correctly to suite the heater
’
s duty
and isolators must be double pole to BS 3456.
Correct cable sizing must be carried out based on the power, cable length and
cable enclosures however in most domestic applications 2.5mm² cable is
suitable. Heat resistance sheathed flex complying to BS 6141:1981 should be
used.
Do not operate the immersion heater if any cleaning agents are in the cylinder
as this will also cause premature failure of the element immersion.
4.4.1
About electrical compliance
Equipment complying with EN/IEC 61000
-
3
-
12 (European/International
Technical Standard setting the limits for harmonic currents produced by
equipment connected to public low
-
voltage systems with input currents >16 A
and
≤75
A per phase.
4.4.2
Overview of wiring connections
(a)
Cable section 2.5 mm²
(b)
Minimum cable section 0.75 mm; maximum length: 20 m.
(c)
Cable section 0.75 mm² to 1.25 mm²; maximum length: 500 m. Applicable for both
single user interface and dual use interface connection.
(d)
Cable section 0.75 mm² to 1.25 mm²; maximum length: 50 m. voltage
-
free contact
shall ensure the minimum applicable load of 15 V DC, 10mA.
(e)
Minimum cable section 0.75 mm²; maximum length 10m.
(f)
The thermistor and connection wire 12m are pre installed on the domestic hot water
tank.
4.5
Wiring Connections
4.5.1
Factory Fitted Wiring
4.5.2
Wiring when using Madoka (BRC1HHD) Controller
4.5.3
Wiring when using Third Party Thermostat (1 Zone)
4.5.4
Wiring when using Third Party Thermostat (2 Zones)
NOTICE
Refer to the Appendix to view these diagrams in larger print.
Third party controller must be volt free and TPI disabled. Cable must be sized for 230V
Third party controller must be volt free and TPI disabled. Cable must be sized for 230V
