Vitocrossal 300 CU3A Quick Start Guide:
INSTRUCTIONS
Service Instructions
for use by heating contractor
Vitocrossal 300
CU3A Series 26 to 57
Floor mounted, gas-fired condensing boiler with MatriX gas burner and Lambda Pro control
For operation with natural gas and liquid propane gas Heating input 19 to 199 MBH
5.6 to 58 kW
VITOCROSSAL 300
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Product may not be exactly as shown |
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IMPORTANT |
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Read and save these instructions |
H |
for future reference. |
5673 649 - 01 04/2015 |
Please file in Service Binder |
Installation Instructions
for use by heating contractor
Vitocrossal 300
CU3A Series 26 to 57
Floor mounted, gas-fired condensing boiler with MatriX gas burner and Lambda Pro control
For operation with natural gas and liquid propane gas Heating input 19 to 199 MBH
5.6 to 58 kW
VITOCROSSAL 300
Product may not be exactly as shown
IMPORTANT
Read and save these instructions
Hfor future reference.
5673 648 - 01 04/2015 Please file in Service Binder
Operating Instructions
Vitocrossal 300
CU3A Series 26 to 57
Floor mounted, gas-fired condensing boiler with MatriX gas burner and Lambda Pro control
For operation with natural gas and liquid propane gas Heating input 19 to 199 MBH
5.6 to 58 kW
VITOCROSSAL 300
With Vitotronic 200 KW6B Controls
WARNING
If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
Do not store or use gasoline or other flammable liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliances.
Do not touch any electrical switches, do not use any phone in your building.
Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency or the gas supplier.
WARNING
Improper installation, adjustment, and/
or operation could cause carbon monoxide poisoning resulting in injury or loss of life.
This product must be installed and serviced by a professional service technician who is experienced and qualified in hot water boiler installation and gas combustion.
Product may not be exactly as shown
|
IMPORTANT |
|
Read and save these instructions |
H |
for future reference. |
5673 650 - 01 04/2015 |
Please file in Service Binder |
Installation Instructions
for use by heating contractor
Mixing Valve Extension Module
for one heating circuit with mixing valve
Mixing Valve
Extension Module
FOR LPG CONVERSION DETAIL, SEE PAGES 14-15
FOR CODINGS, SEE PAGES 57-70
FOR TROUBLESHOOTING AND FAULT CODES, SEE PAGES 75-86 FOR WIRING DIAGRAM, SEE PAGES 94-95
FOR HEATING/DHW PUMP AND SENSOR WIRING, SEE PAGES 24-38 FOR SYSTEM LAYOUT, SEE PAGES 40-48
FOR PROGRAMMING, SEE PAGES 11-33
FOR PUMP AND SENSOR WIRING, SEE PAGE 8
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Product may not be exactly as shown |
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IMPORTANT |
Certified as a component |
Read and save these instructions |
part for Viessmann boilers |
for future reference. |
5774 472 - 03 04/2015 |
Please file in Service Binder |
For the latest updates on the Quick Start Guide, please visit UNCOMPROMISE.US
QUICK START GUIDE
VITOCROSSAL 300, CU3A
UNCOMPROMISE.US
9442120 05 / 2015
VITOCROSSAL CU3A QUICK START GUIDE
ABOUT THIS QUICK START GUIDE: The programming and wiring recommendations in this guide are intended to enable immediate initial service under the most common conditions; they are not intended to be a substitute for detailed, site-specific set-up and commissioning. Only for use by trained, licensed heating contractor.
SEE THE INSTALLATION AND SERVICE INSTRUCTIONS FOR IMPORTANT SAFETY INFORMATION.
BEFORE BEGINNING THE QUICK START PROCESS:
1.Verify that power (120/1/60 wth earth ground, properly polarized) is supplied to the #40 connections on the POWER/PUMP INTERFACE and MIXING CONTROL, if used.
2.Verify that the fuel gas supply is available (4”-14”WC Nat, 10”-14”WC LPG) and that air has been purged from the piping.
3.Verify boiler/system water fill and purge.
4.Verify proper venting and combustion air supply.
ACCESS TO THE CU3A WIRING: |
REMOVE FASTENERS 1 - 6 |
Remove fastners |
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in order. |
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1. |
BOILER
CONTROL
EA1 EXTENSION |
POWER/PUMP INTERFACE |
Vitocrossal 300 CU3A Quick Start Guide:
WIRING CONNECTIONS
FOR HEATING ONLY:
CONNECT #1 OUTDOOR SENSOR TO SCREW
TERMINALS X3, 1 + 2 ON BOILER CONTROL
USE #20 ON THE POWER/PUMP INTERFACE
TO POWER SINGLE-ZONE HEATING PUMP
DIRECTLY. ON ZONED SYSTEMS, USE #20 TO POWER ZR (REMOVE ZC-ZR JUMPER) ON SWITCHING RELAY PROVIDED BY
OTHERS
BOILER CONTROL POWER/PUMP INTERFACE
TO ADD DOMESTIC HOT WATER:
CONNECT THE #5 DHW SENSOR TO THE RED #5 PLUGS ON THE BOILER CONTROL. DHW OPERATION WILL BE AUTO-ENABLED IN THE CONTROL PROGRAM.
USE A SEPARATE DHW PUMP; POWER IT
WITH #21 ON THE POWER/PUMP INTERFACE
BOILER CONTROL POWER/PUMP INTERFACE
TO ADD A MIXING VALVE:
CONNECT THE PURPLE #145 ON THE MIXING VALVE EXTENSION TO THE #145 KM BUS ON THE BOILER’S EA1 EXTENSION USING 18/2 WIRE
CONNECT THE #2 SUPPLY SENSOR TO #2 ON
THE MIXING VALVE EXTENSION. CONNECT
THE MIXING VALVE MOTOR TO #52 ON THE
MIXING VALVE EXTENSION
EA1 EXTENSION |
MIXING VALVE EXTENSION |
POWER THE MIXING PUMP WITH #20 ON |
(OPTIONAL) |
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THE MIXNG VALVE EXTENSION |
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