Setting Up The Domestic Hot Water Tank; System Layout - Integrated Dhw Tank; Selecting The Desired Temperature For The Dhw Tank - Daikin Altherma 3 R F Installer's Reference Manual
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Also See for Altherma 3 R F:
- Installer's reference manual (312 pages) ,
- User reference manual (64 pages) ,
- Installation manual (48 pages)
Table of Contents
5
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Application guidelines
5.4 Setting up the domestic hot water tank
5.4.1 System layout – Integrated DHW tank
5.4.2 Selecting the desired temperature for the DHW tank
Installer reference guide
38
NOTICE
▪
Make sure the auxiliary contact has enough differential or time delay to prevent
frequent changeover between indoor unit and auxiliary boiler.
▪
If the auxiliary contact is an outdoor temperature thermostat, install the
thermostat in the shadow so that it is NOT influenced or turned ON/OFF by direct
sunlight.
▪
Frequent changeover may cause corrosion of the auxiliary boiler. Contact the
manufacturer of the auxiliary boiler for more information.
a
A
Domestic hot water
a
Cold water IN
b
Hot water OUT
People experience water as hot when its temperature is 40°C. Therefore, the DHW
consumption is always expressed as equivalent hot water volume at 40°C.
However, you can set the DHW tank temperature at a higher temperature
(example: 53°C), which is then mixed with cold water (example: 15°C).
Selecting the desired temperature for the DHW tank consists of:
1
Determining the DHW consumption (equivalent hot water volume at 40°C).
2
Determining the desired temperature for the DHW tank.
Determining the DHW consumption
Answer the following questions and calculate the DHW consumption (equivalent
hot water volume at 40°C) using typical water volumes:
Question
How many showers are needed per
day?
How many baths are needed per day?
How much water is needed at the
kitchen sink per day?
Are there any other domestic hot water
needs?
Example: If the DHW consumption for 2 persons per day is as follows:
b
A
1 shower = 10 min×10 l/min = 100 l
1 bath = 150 l
1 sink = 2 min×5 l/min = 10 l
—
Typical water volume
ERLA03DAV3 + EHFH03S18DJ3V
Daikin Altherma 3 R F
4P596806-1 – 2019.10
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