Daikin EHY2KOMB28AA — руководство по установке и подключению водопровода для систем отопления [80/236]

9 | Installation

Installer reference guide

EJHA04AAV3 + EHY2KOMB28+32AA

Daikin Altherma H Hybrid

4P531180-1B – 2020.02

a Condensate discharge from boiler

b Soil and vent stack

c Sink or basin with integrated overflow

d 75mm waste trap and air break

e Condensate pump

9.5.2 External connections

If an externally condensate drainage pipe is used, following measures should be

made to prevent freezing:

▪ The pipe should be run internally as far as possible before going to the outside.

The pipe diameter should be increased to a minimum inner diameter of 30mm

(typically outer diameter of 32mm) before it goes through the wall.

▪ The external run should be kept as short as possible, taking the most vertical

route possible to the discharge point. Take into account that there are no

horizontal sections in which condensate might collect.

▪ The external pipe should be insulated. Use a suitable waterproof and weather

proof insulation ("ClassO" pipe insulation is suitable for this purpose).

▪ The use of fittings and elbows should be kept to a minimum. Any internal burrs

should be removed so that the internal pipe section is as smooth as possible.

9.6 Connecting water piping

9.6.1 About connecting the water piping

Before connecting the water piping

Make sure the outdoor unit and gas boiler are mounted.

Typical workflow

Connecting the water piping typically consists of the following stages:

1 Connecting the water piping of the outdoor unit.

2 Providing drainage for the pressure relief valve.

3 Connecting the water piping of the gas boiler.

4 Protecting the water circuit against freezing.

5 Filling the space heating circuit.

6 Filling the domestic water circuit of the gas boiler.

7 Filling the domestic hot water tank (if applicable).

8 Insulating the water piping.

9.6.2 Precautions when connecting the water piping

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation