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Instructions 

1005101718 

ENVI & MCBA to NURO  

Date: 12/19/2017 

Revision A 

NURO Conversion Instructions 

MACH C1500V-C2000V 

 

 

 

 

 

 

 

Indicates a potentially hazardous situation which, if not avoided, 

may

 result in minor or moderate injury.  It may also 

be used to alert against unsafe practices. 

 

 

 

 

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.  This signal 

word is to be limited to the most extreme situations. 

 

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

 

N

OTICE

!

 

Each safety device must be maintained and checked per the recommended schedule.  Refer to Section 6 in 
the O&M Manual for more information. 

S

AFETY 

F

EATURES

 

It is the responsibility of the customer to ensure external safety provisions, such as but not limited to: 
guards, safety labels, safety controls, interlocks, lockout devices are in place and operable.  

 

S

AFETY 

L

ABELS

 

The following words are used in this manual to denote the degree of seriousness of the individual hazards.  

N

OTICE

/N

OTE 

-

 

N

OTICE

 

Is the preferred signal word to address practices not related to personal injury.  The safety alert symbol is 
not used with this signal word.   

Summary of Contents for HARSCO MACH C1500V

Page 1: ...ch if not avoided could result in death or serious injury NOTICE Each safety device must be maintained and checked per the recommended schedule Refer to Section 6 in the O M Manual for more informatio...

Page 2: ...n be misused which could result in personal injury or death Lockout tagout procedure must be employed when servicing this unit Failure to do so could result in electrocution injury or death Label all...

Page 3: ...al block covers Identify and label all current field wiring on boiler when disconnecting 4 Remove 7 16 nuts as required that hold top panel on as shown in Figure 1 Top panel will need to be lifted at...

Page 4: ...evision A NURO Conversion Instructions MACH C1500V C2000V 5 Using a 1 8 drill bit drill out rivets that fasten high and low voltage terminal blocks 6 Remove 7 16 nuts from 4 inside corners of front fr...

Page 5: ...1005101718 ENVI MCBA to NURO Date 12 19 2017 Revision A NURO Conversion Instructions MACH C1500V C2000V 7 Remove 3 T30 Torx screws from front frame as shown in Figure 3 Remove front frame Remove 7 16...

Page 6: ...12 19 2017 Revision A NURO Conversion Instructions MACH C1500V C2000V 8 With a T30 Torx bit loosen 3 screws that hold control panel in place shown in Figure 3 Figure 3 Loosen T30 Torx screws to contr...

Page 7: ...to wire colors for sensors as new panel will use same colors for sensor wires 9 Control panel can now be slid right lifted off screws and removed from boiler 10 Using a 1 2 wrench remove and replace...

Page 8: ...NURO Date 12 19 2017 Revision A NURO Conversion Instructions MACH C1500V C2000V 11 Install heat exchanger sensor on front section of exchanger Sensor only needs to be finger tight DO NOT OVERTIGHTEN S...

Page 9: ...ront of boiler using supplied T20 self tapping Torx screws 14 Run all internal wires to appropriate safety devices and sensors Types of Wires Colors Identification Return Temperature Sensor Wires Blue...

Page 10: ...R TUBE 16 Install tubing for air switch and blocked flue switch Blocked flue tube will need to be cut to length to ensure that there is not tube slack Tube should be pitched down from switch to conden...

Page 11: ...frame assembly with 4 7 16 nuts in each corner from inside of cabinet 18 Install 3 T30 Torx screws along bottom of front frame assembly 19 Install front door on hinge pins 20 Install NURO touch screen...

Page 12: ...ions MACH C1500V C2000V 21 Insert green electric plug D1 and D2 into NURO control and attach all ground wires to front door ground lug 22 Install field wiring to new terminal boxes per wiring terminal...

Page 13: ...vision A NURO Conversion Instructions MACH C1500V C2000V 24 Flame Rectification Signal Lead wire shown in Figure 12 will not be used Use cap supplied in kit to cover end of wire connection Figure 13 G...

Page 14: ...Instructions 1005101718 ENVI MCBA to NURO Date 12 19 2017 Revision A NURO Conversion Instructions MACH C1500V C2000V Figure 14 Figure 15 Heat Exchanger Sensor and Wires Blower Plugs...

Page 15: ...Instructions 1005101718 ENVI MCBA to NURO Date 12 19 2017 Revision A NURO Conversion Instructions MACH C1500V C2000V Figure 16 High Limit Probe Low Water Cut Off Figure 17...

Page 16: ...rols to boiler 570 421 7500 and press 2 for technical support 26 After pairing is complete with technical support re energize gas supply to unit 27 Perform Runout Procedure 28 Perform factory start up...

Page 17: ...urn off the boiler s circulating pump Isolate the boiler from the system Drain the water level below the low water cut off probe Turn the boiler back on It should not operate and a manual lockout rese...

Page 18: ...ownstream manual isolation valve then turn the boiler back on and reset the control 15 Test the air switch for proper operation Allow the boiler to start Remove the tube from the air switch after 30 s...

Page 19: ...Instructions 1005101718 ENVI MCBA to NURO Date 12 19 2017 Revision A NURO Conversion Instructions MACH C1500V C2000V...

Page 20: ...Instructions 1005101718 ENVI MCBA to NURO Date 12 19 2017 Revision A NURO Conversion Instructions MACH C1500V C2000V...

Page 21: ...Instructions 1005101718 ENVI MCBA to NURO Date 12 19 2017 Revision A NURO Conversion Instructions MACH C1500V C2000V...

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