User manual

Chapter 2: Installing your SEC-HD Phason

SEC-HD layout

Voltage selection switch: set this switch to the correct voltage before installing your SEC-HD.

Incoming power terminal: connect the incoming power (120/230 VAC, 50/60 Hz) to this terminal.

Temperature probe terminal: connect the temperature probe to this terminal.

Alarm relay terminal: connect an external alarm system or alarm siren to this terminal.

General-purpose relay terminals (STAGE 3 to STAGE 5): connect single stage (on/off) equipment to these

terminals. You can configure these relays as heat or cool.

Variable stage terminals (VAR 1, VAR 2): connect variable speed fans to these terminals.

Variable stage fuses (F3 for VAR 2, F2 for VAR 1): 15 A, 250 VAC ABC-type ceramic.

Relay fuses (F1 for STAGE 3, F4 for STAGE 4, and F5 for STAGE 5): 12 A, 250 VAC ABC-type ceramic.

Display cable: make sure the ribbon cable from the display is properly connected to the socket.