6.23 When installing external control devices, check their compatibility with the electrical characteristics of the unit.
6.24 For installations at height, use elevating platforms, scaffolding or trestles.
6.25 If the unit is equipped with an electric defrosting device with resistors (connections cabled in a thermoplastic junction box),
define the number and frequency of the switch-ons of the resistors and periodically check their functionality.
6.26 In the case of more than one model installed at close range it is advisable to avoid alternate defrostings.
6.27 Upon request, models can be supplied with coils, defrosting units and fan motors different from the standard ones.
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