Dantherm HCH 5 Installation And Service Manual page 19

Set points and control strategies,
Frost protection, 3) Recommendation
continued
To secure a balanced air flow without intentional shut-down, Dantherm A/S recom-
mends installing pre-heat in areas where temperatures during longer periods of time
is below ÷6 °C.
In areas where temperatures constantly are below ÷13 °C, installing pre-heat is a
must to secure optimal operation.
17
continued