Related Manuals for Lennox PCUS
Summary of Contents for Lennox PCUS
- Page 1 PCUS /PCUSM Thermostat User manual Installation, use and maintenance manual Before starting to work with the machine operation, read the PCUS Thermostat - User Manual installation, use and maintenance manual.
- Page 2 All the technical and technological information contained in this manual, including any drawing and technical descriptions provided by us, remain the property of Lennox and must not be utilised (except in operation of this product), reproduced, issued to or made available to third parties without the prior written agreement of Lennox.
- Page 3 1.1 PCUS UNIT The PCUS control system consists of two parts, an LCD display and setting and a control unit which contains the interface relays to be connected to the devices to be controlled, the connection inputs for the temperature probes.
- Page 4 2.2 USER INTERFACE OF PCUS REMOTE CONTROL 1. On/Off Button 2. Mode Button 3. Ventilation Button 4. + Button 5. - Button 6. Ventilation Symbol Area Graphical Area LOW ENERGY CONSUMPTION 35% energy savings with e-Baltic when compared to a standard rooftop installed on a retail building.
-
Page 5: Technical Data
Refer to the attached connection diagram. 2.7 PCUS DESCRIPTION The PCUS control system is a thermostat capable of controlling three-speed ventilation units, or with EC fans, 230V on / off solenoid valves or modulating valves with 0-10Vdc signal and 230V on / off dampers.. -
Page 6: Operation Description
2.8 OPERATION DESCRIPTION An important feature of the PCUS system is its adaptability to various possible solutions through the destination programming of hardware inputs / outputs through the use of dip switches and parameters at the manufacturer level. - Page 7 + or - keys. At this point, band 1 has been set, valid for the days from Monday to Friday, in the photo beside you can see how it looks for the example shown PCUS Thermostat - User Manual - 0821EN www.lennoxemea.com...
- Page 8 OFF By pressing the Mode button again, you move to setting band 2 on Sunday identified by the word Week 7 and set the desired action to OFF www.lennoxemea.com PCUS Thermostat - User Manual - 0821EN...
- Page 9 By way of summary, below are the photos of the four time bands for the days from Monday to Friday as set up to now. Example: Time band 1 Example: Time band 2 PCUS Thermostat - User Manual - 0821EN www.lennoxemea.com...
-
Page 10: User Parameters
1 max 10 U1.6 VOC Adjustment band min 10 max 10 U1.7 PM2.5 Adjustment band min 200 max 200 U1.8 FAN adjustment band in AUTO mode (V) min 1 max 10 www.lennoxemea.com PCUS Thermostat - User Manual - 0821EN... - Page 11 3. LOGICAL DESCRIPTION OF THE PCUS REMOTE CONTROL 3.1 VENTILATION REGULATION The PCUS control card is suitable for regulating units with standard three-speed fans or as an alternative to regulating the ventilation of units with EC fans. The configuration of the type of fans is fixed at the manufacturer parameter level. In the case of standard three- speed fans, three 230V digital outputs are used, while in the case of EC fans, two 0-10V analog outputs are used.
- Page 12 3.7 DIRTY FILTER INLET SIGNAL The PCUS control has an on / off type input for the dirty filter signal. The preset input is DI1 and by default the dirty filters function is activated when the input contact is closed.
- Page 13 4. RTU MODBUS 4.1 INTRODUCTION The PCUS control board is, in the PCUSM version, equipped with a Modbus RTU port which allows an external supervision system to communicate with the controller.The connection is two-wire and the use of twisted and shielded 2x0.5 mmq cable is recommended.
-
Page 14: Dip Switch
AI5 sensor presence 0 = NO 1 = YES From 1 to 244 (least significant 9-bit DIP switch, most set-16 Modbus address (PCUSM reserved) significant 16-bit DIP switch) / Example: 00000001 address 1 www.lennoxemea.com PCUS Thermostat - User Manual - 0821EN... - Page 15 Due to LENNOX EMEA ongoing commitment to quality, the specifications, ratings and dimensions are subject to change without notice and without incurring liability. Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury. Installation and service must be performed by a qualified installer and servicing agency.