Monessen Hearth MJ22NIF/PIF, Installation & Owner'S Manual, Page: 2 / 47

Monessen • Mojo Installation/Owner’s Manual • 4623-900 Rev. D • 04/21 2
Safety Alert Key:
• DANGER! Indicates a hazardous situation which, if not avoided will result in death or serious injury.
• WARNING! Indicates a hazardous situation which, if not avoided could result in death or serious injury.
• CAUTION! Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
• NOTICE: Used to address practices not related to personal injury.
Table of Contents
Installation Standard Work Checklist . . . . . . . . . . . . . . . . . . . . 3
1 Product Specific & Important Safety Information
A. Appliance Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
B. BTU Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
C. High Altitude Installations . . . . . . . . . . . . . . . . . . . . . . . . . . 4
D. Non-Combustible Materials Specification. . . . . . . . . . . . . . 4
2 Getting Started
A. Design and Installation Considerations . . . . . . . . . . . . . . . 5
B. Tools and Supplies Needed . . . . . . . . . . . . . . . . . . . . . . . . 5
C. Inspect Appliance and Components . . . . . . . . . . . . . . . . . . 5
D. Check Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
E. Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
F. Pilot/ODS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
G. Adequate Combustion Ventilation Air . . . . . . . . . . . . . . . . . 8
3 Clearances & Height Requirements
A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Gas Information
A. Gas Line Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
B. Fuel Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
C. Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
D. Gas Service Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5 Electrical Information
A. General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
B. Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
C. Detailed Component Operating Instructions -IntelliFire ® Plus
with ODS (Battery Only) . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6 Gas Log Sets
A. Place Rock Wool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
B. Log Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
C. Flame Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7 Owner’s Manual
A. Congratulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
B. Limited Lifetime Warranty . . . . . . . . . . . . . . . . . . . . . . . . . 26
8 Important Safety & Operating Information
A. Appliance Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
B. General Operating Parts . . . . . . . . . . . . . . . . . . . . . . . . . 30
C. Fuel Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
D. Before Lighting Appliance. . . . . . . . . . . . . . . . . . . . . . . . . 30
9 Product Specification Information
A. Application Certification . . . . . . . . . . . . . . . . . . . . . . . . . . 31
B. BTU Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
C. Initial Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
10 Lighting Instructions
A. IntelliFire ® Plus with ODS . . . . . . . . . . . . . . . . . . . . . . . . 32
11 IntelliFire® Plus with ODS Remote Control
A. Installation & Operating Instructions. . . . . . . . . . . . . . . . . 33
12 Maintenance & Service
A. Maintenance: Frequency & Tasks . . . . . . . . . . . . . . . . . 37
B. Maintenance Tasks: Qualified Service Technician . . . . . 37
C. Burner Ignition & Operation . . . . . . . . . . . . . . . . . . . . . . . 38
D. Cleaning & Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
13 Troubleshooting
A. IntelliFire ® Plus with ODS Ignition System . . . . . . . . . . . 39
14 Service Parts & Accessories
A. Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
B. Massachusetts Residents Only . . . . . . . . . . . . . . . . . . . . 45
C. Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
NOTE : Monessen vent free gas logs are hand painted
for ultimate beauty and realism. As a result, some
variation in color and shading will occur from set to set.
This is intentional and designed to make each product
unique, as found in nature.
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