10
|
Configuration
Installer reference guide
171
EPRA14~18D + ET23E
Daikin Altherma 3 H HT F
4P644739-1A – 2022.03
Pump limitation
The pump speed limitation for the main zone [9‑0E] and additional zone [9‑0D]
defines the maximum pump speed. In normal conditions, the default setting should
NOT be modified. The pump speed limitation will be overruled when the flow rate
is in the range of the minimum flow (error 7H).
In most cases, instead of using [9-0D]/[9-0E], you can prevent flow noises by
performing hydraulic balancing.
#
Code
Description
[4.8.1]
[9-0E]
Pump limitation
Main zone
Possible values: see below.
[4.8.2]
[9-0D]
Pump limitation
Additional zone
Possible values: see below.
Possible values:
Value
Description
0
No limitation
1~4
General limitation. There is limitation in all conditions. The
required delta T control and comfort are NOT guaranteed.
▪
1:
90% pump speed
▪
2:
80% pump speed
▪
3:
70% pump speed
▪
4:
60% pump speed
5~8
Limitation when no actuators. When there is no heating output,
the pump speed limitation is applicable. When there is heating
output, the pump speed is only determined by delta T in
relation to the required capacity. With this limitation range,
delta T is possible and the comfort is guaranteed.
During sampling operation the pump runs for a short time to
measure the water temperatures, which indicate if operation is
required or not.
▪
5:
90% pump speed during sampling
▪
6:
80% pump speed during sampling
▪
7:
70% pump speed during sampling
▪
8:
60% pump speed during sampling
The maximum values depend on the unit type:
[9-0D]/[9-0E]=0
[9-0D]/[9-0E]=1/5
a (kPa)
b (l/min)
a (kPa)
b (l/min)
Summary of Contents for ETVZ16E6V7
Page 281: ......
Page 282: ......
Page 283: ......
Page 284: ...4P644739 1A 2022 03 Copyright 2021 Daikin Verantwortung f r Energie und Umwelt...
