Owner's manual

ManualsBrandsDunkirk ManualsWater boilerHelix VLT Vertical Laser Tube, Wall Hung Modulating Condensing Boiler

Multi Boiler Guide

Kit # 550002186

P/N 240008959, Rev. C [03/2013]

Information and speciﬁ cations outlined in this manual in effect at the

time of printing of this manual. Manufacturer reserves the right to

discontinue, change speciﬁ cations or system design at any time without

notice and without incurring any obligation, whatsoever.

Technical Support @ 800-325-5479

Phone: (315) 797-1310 • Fax: (866) 432-7329

e-mail: info@ecrinternational.com

web site: www.ecrinternational.com

Summary of content (12 pages)

PAGE 1
Multi Boiler Guide Kit # 550002186 Technical Support @ 800-325-5479 Phone: (315) 797-1310 • Fax: (866) 432-7329 e-mail: info@ecrinternational.com web site: www.ecrinternational.com Information and specifications outlined in this manual in effect at the time of printing of this manual. Manufacturer reserves the right to discontinue, change specifications or system design at any time without notice and without incurring any obligation, whatsoever. P/N 240008959, Rev.
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MULTIPLE BOILER GUIDE 1 - Multiple Boiler Operation System Setup • Boiler control can be applied for multiple boiler systems in cascade setup. • System sensor input is available on low voltage terminal block to measure cascade system supply temperature. • CH & DHW pump outputs are available on managing boiler. • When CH supply temperature is calculated based on outdoor sensor, only one outdoor sensor is needed. Sensor is connected to managing boiler and calculates CH setpoint for cascade system.
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MULTIPLE BOILER GUIDE 2 - Setting Boiler Address Argus Link Connection And Power Switch S4: • All boilers must be connected in parallel to Argus Link terminals on low voltage terminal block. • Maximum wire length is 100' (30m) for 22 gauge, 150' (45m) for 18 gauge. • Maintain polarity of wires between each boiler. • Managing boiler control provides power for communication. • Managing boiler S4 switch has to be in ON position (away from S4 marking).
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MULTIPLE BOILER GUIDE Figure 3 - SSC/VLT Multiple Boiler Wiring OUTDOOR SENSOR SYSTEM SENSOR UP TO 16 BOILERS MANAGING BOILER MANAGIN DEPENDENT BOILER DEPENDENT EPENDEN BOILER BOILER #1 BOILER #2 BOILER #16 Figure 4 - ECR97 Multiple Boiler Wiring 4
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MULTIPLE BOILER GUIDE Menu option: Menu option found in installer display menu of each individual boiler. Press menu and enter buttons on user interface simultaneously for 5 second to enter Installer menu. See figure 5. One boiler is MANAGING (Boiler Address: 1) and all other boilers work as dependent (address 2..16). Each boiler should have its unique address. Manually program each boiler's address.
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MULTIPLE BOILER GUIDE 3 - Cascade – Heating only Dependent Boiler • Dependent boiler (address = 2-16) always receives its setpoint from managing boiler. Managing Boiler Boiler is set as Managing (address = 1), controller of this boiler will drive cascade. CH mode of managing boiler applies to all other boilers. It is only required to set CH mode on managing boiler.
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MULTIPLE BOILER GUIDE 5 - Cascade – Start/Stop Sequence be adjusted). If system termperature is below this point no boilers are stopped. Following sequence of operation occurs if there is call for heat (CH or DHW) boilers will start as following: • All boilers are stopped when system temperature is above Cascade Setpoint + (plus) Stop Boiler Differential. Starting Boilers 1. Do not open manual gas shut off valve before purging all air from system. 2. Do not start boiler if water is leaking.
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MULTIPLE BOILER GUIDE 7 - Error handling Loss Of Cascade Communication • Loss of cascade communication is detected by dependent boilers. 7.1 Freeze Protection Frost protection function for cascade relates to system sensor temperature. When system sensor value is below 10°C (50°F), internal and CH pump of managing boiler start. Display shows “freeze protection”. • Individual boilers will show error on display when communication is lost.
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MULTIPLE BOILER GUIDE Specific Parameters Permit Boiler Emergency Mode Level (Default) Value °C °F Range °C °F [-] 1: User yes [ºC/ºF] 1: User 80 [-] 2: Installer 0 [ºC/ºF] 2: Installer 45 Start Delay Time [min] 2: Installer 3 1..15 Stop Delay Time Start Boiler Diff [min] 2: Installer 3 1..15 [ºC/ºF] 2: Installer 5 9 0..20 0..36 Stop Boiler Diff [ºC/ºF] 2: Installer 2 18 0..20 0..36 Calculated setpoint Max offset down [ºC/ºF] 2: Installer 4 36 0..20 0..
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NOTES 10
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Date Service Performed Company Name & Tech Initials Company Address & Phone #
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Technical Support @ 800-325-5479 Phone: (315) 797-1310 • Fax: (866) 432-7329 e-mail: info@ecrinternational.com web site: www.ecrinternational.