Danfoss Ally Application Guide

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| © Danfoss | FEC | 2023.12 AB440847594423en-000103
Application Guide Heating Control Danfoss Ally™
2. General Guidelines
2.1 Heat supply
If the heating system has been optimized for constant set temperature around the clock, you
may need to adjust the settings when working with setback periods. When changing the
temperature from a low economy setting to a comfort temperature, the system must be able to
supply enough heat to raise the room temperature at least 1 °C per hour to perform well. Com-
pared to a steady temperature the heating system must typically be able to supply 25% more
heat, but only for a short period of time during heat up.
BOOST
ECONOMY COMFORT
ENERGY
How to achieve 25% extra capacity in a system that should run boost:
Limitations Action
Max. ΔP and temperature reached: Increase valve presetting
Max. temperature and preset reached: Increase pump pressure
Max. preset and ΔP reached: Increase water temperature
NOTE: Maximum acceptable presetting, water temperature and pump dierential pressure settings are dierent
from system to system and depend on the application.
For radiator valves with pre-setting, balance
the system to allow for enough ow.
The supply line temperature at the radiator
valves should be above 40 °C to ensure
optimal control.
Make sure that the supply water temperature
and ow is adequate to provide enough energy.
Increase the temperature or the pump level,
ifnecessary.
min.
40 °C

Danfoss Ally Specifications

General

Accuracy	50 sec/month
Noise level	30 dB
Product color	White
Smart thermostat	Yes
Operating frequency	2400 MHz
Suitable for indoor use	-
Maximum water temperature	90 °C
Storage temperature (T-T)	-20 - 65 °C
Temperature control range	5 - 35 °C
Operating temperature (T-T)	0 - 40 °C
International Protection (IP) code	IP20
Package weight	250 g
Display type	LCD
Battery type	AA
Power consumption (typical)	1.2 W

Weight and Dimensions

Weight	198 g
Diameter	55 mm