Hired-Hand Electro Mechanical Controls (Relay-Switches): PC-DB Curtain Controller with DIF - Manual (Page 2)

4801-1208 PC-DB-with DIF 1
PC-CU-DB
with DIF
1. WARNINGS ........................................................................................................................................1
2. PHYSICAL DESCRIPTION ..............................................................................................................2
3. USE OF EQUIPMENT .......................................................................................................................2
4. INSTALLATION ................................................................................................................................2
5. SET-UP INSTRUCTIONS ..................................................................................................................2
5.1. C URTAIN T IMER ..................................................................................................................................2
5.1.1. Description..................................................................................................................................2
5.1.2. Setting machine runtime ..............................................................................................................3
5.2. D AY /N IGHT T IMER ..............................................................................................................................3
5.2.1. Description..................................................................................................................................3
6. OPERATION ......................................................................................................................................4
6.1. M ANUAL C ONTROL .............................................................................................................................4
6.2. A UTOMATIC C ONTROL ........................................................................................................................4
7. WIRING DIAGRAM ..........................................................................................................................5
1. Warnings
Warning!
When this controller is used in a life support heating and ventilation
system where failure could result in loss or injury, the user should provide
adequate back-up, or accept the risk of such loss or injury!
Warning!
Wiring and connections must comply with all national and local electrical
codes. Installation by qualified electrician required!
Warning!
Electrical shock may occur if the enclosure is opened with power
connected to the unit. Before opening the enclosure, make sure that all
power sources to controller are disconnected!