Technical data

Chapter 3 – Mechanical Installation
Siemens Building Technologies, Inc. 5
Chapter 3 — Mechanical Installation
Installation after Extended Storage
After an extended period of storage, recharge the capacitors in the SED2. Calculate the storage
time from the date of manufacture, and not from the date of delivery. The recharge procedure
varies according to the storage period as follows:
Period of Storage Required Action
Preparation
Time
1 year or less Recharging not required. No
preparation
1 to 2 years Before issuing the “run” command, connect the SED2 to
the mains for one hour.
1 hour
2 to 3 years Use a variable AC power source as follows:
• Apply 25% of the input voltage for 30 minutes.
• Increase the voltage to 50% for an additional
30 minutes.
• Increase the voltage to 75% for an additional
30 minutes.
• Increase the voltage to 100% for an additional
30 minutes.
The SED2 is then ready for operation.
2 hours
3 or more years Use a variable AC power source as follows:
• Apply 25% of the input voltage for 2 hours.
• Increase the voltage to 50% for an additional 2 hours.
• Increase the voltage to 75% for an additional 2 hours.
• Increase the voltage to 100% for an additional 2 hours.
The SED2 is then ready for operation.
8 hours
Environmental Conditions
Temperature:
Maximum operating temperature: +104°F (+40°C) *
Minimum operating temperature: +14°F (-10°C)
* Be aware of the potential increase in temperature inside a control cabinet (derating is required).
Humidity: Maximum 95% rh noncondensing