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ECL Comfort 210/310, A275/A375 Installation Guide - Danfoss ...

ECL Comfort 210/310, A275/A375 Installation Guide - Danfoss ...

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<strong>Installation</strong> <strong>Guide</strong> <strong>ECL</strong> <strong>Comfort</strong> <strong>210</strong> / <strong>310</strong>, application <strong>A275</strong> / <strong>A375</strong><br />

6.5 Optimization<br />

Auto saving (saving temp. dependent on outdoor temp.) 12011<br />

Circuit Setting range Factory setting<br />

2 OFF / -29 ... 10 °C -15 °C<br />

Below the set value for the outdoor temperature, the saving temperature<br />

setting has no influence. Above the set value for the outdoor temperature,<br />

the saving temperature relates to the actual outdoor temperature. The<br />

function is relevant in district heating installations in order to avoid a big<br />

change in the desired flow temperature after a saving period.<br />

OFF: The saving temperature does not depend on the<br />

outdoor temperature.<br />

-29 ... 10: The saving temperature depends on the outdoor<br />

temperature. When the outdoor temperature is above<br />

10 °C, the reduction is 100%. The lower the outdoor<br />

temperature, the less the temperature reduction. When<br />

the outdoor temperature is below the set limit, there is<br />

no temperature reduction.<br />

The comfort and the saving temperatures are set in the display<br />

overviews. The difference between the comfort and the saving<br />

temperature is considered to be 100%. Depending on the outdoor<br />

temperature, the percentage value can be lower according to the<br />

set value in ‘Auto saving’.<br />

Boost 12012<br />

Circuit Setting range Factory setting<br />

2 OFF / 1 ... 99% OFF<br />

Shortens the heating-up period by increasing the desired flow temperature<br />

by the percentage you set.<br />

OFF: The boost function is not active.<br />

1-99%: The desired flow temperature is increased temporarily<br />

with the set percentage.<br />

In order to shorten the heating-up period after a saving<br />

temperature period, the desired flow temperature can be increased<br />

temporarily (max. 1 hour). At optimizing the boost is active in the<br />

optimization period ('Optimizer').<br />

If a room temperature sensor or an ECA 30 / 31 is connected, the<br />

boost stops when the room temperature is reached.<br />

100%<br />

0%<br />

Reduction<br />

-29 -20 -10 0 10 20<br />

Example:<br />

Auto saving<br />

Outdoor temp.: –5 °C<br />

Desired room temp. in <strong>Comfort</strong> mode: 22 °C<br />

Desired room temp. in Saving mode: 16 °C<br />

Setting in ‘Auto saving’: –15 °C<br />

Outdoor temp. °C<br />

The drawing above illustrates that the reduction percentage at an<br />

outdoor temperature of –5 °C is 40%.<br />

The difference between <strong>Comfort</strong> and Saving temperature is (22–16)<br />

= 6 degrees.<br />

40% of 6 degrees = 2.4 degrees<br />

The ‘Auto saving’ temperature is corrected to (22–2.4) = 19.6 °C.<br />

132 DEN-SMT/DK VI.GU.L1.02 <strong>Danfoss</strong> District Energy

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