MORTEX G18D SERIES - SECTION 1: SAFETY; Safety Requirements; Fire and Electrical Hazards; Fire or Explosion Hazard

Mortex Products Inc. / Fort Worth, TX 76106 G18D Installation Instructions
2
ACCESSORIES
G18D Series Gas Furnace INSTALLATION INSTRUCTIONS
Model No. G18D060AH2AA G18D070AH2AA G18D077AH2AA G18D090AH2AA G18D060CA3AA G18D070CA3AA G18D077CA3AA G18D090CA3AA G18D060CA4AA G18D070CA4AA G18D077CA4AA G18D090CA4AA
Input, BTUH 60,000 70,000 77,000 90,000 60,000 70,000 77,000 90,000 60,000 70,000 77,000 90,000
Output, BTUH 48,000 56,000 61,600 72,000 48,000 56,000 61,600 72,000 48,000 56,000 61,600 72,000
AFUE, % 80 80 80 80 80 80 80 80 80 80 80 80
With A-Coil Cabinet YES YES YES YES YES YES YES YES YES YES YES YES
Ignition Type Auto-Elect Auto-Elect Auto-Elect Auto-elect Auto-Elect Auto-Elect Auto-Elect Auto-elect Auto-Elect Auto-Elect Auto-E
lect Auto-elect
Air Temp Rise, Range - F 40-70 40-70 40-70 45-75 40-70 40-70 40-70 45-75 40-70 40-70 40-70 45-75
Designed Max Outlet Air Temp-F 170 170 170 175 170 170 170 175 170 170 170 175
Natural Gas Orice Size 27 22 19 17 27 22 19 17 27 22 19 17
Propane (LP) Gas Orice Size 44 42 41 37 44 42 41 37 44 42 41 37
Blower-Heat or Heat/Cool 10 X 8, 1/4 HP, 2 SPD 10 X 8, 1/3 HP, 3 SPD 10 X 8, 3/4 HP, 4 SPD
Max. External SP (Duct), In. W.C. 0.3
Fuel
Natural Gas (Factory Equipped) - LP Orice Furnished
High Alitiude
For elevations above 2,000 feet, reduce input 4% for each 1,000 ft. elevation above sea level
Furnace Flue Pipe
Must Use RJS Roof Jack for Sloped Roof or RJF Roof Jack for Flat Roof
Gas Connection
1/2” FPT
Electric Service
115 VAC, 60 Hz, 1 PH
Fuse or Circuit Breaker
15 Amp
Thermostat Circuit
24 VAC, 60 Hz, 40VA
Filters
2 – 16” X 20” X 1”
G=Gas 18=80% D = Downow 060, 070,077 Cabinet Furnace Indoor Blower Air Type Of Blower Revision
U = Upow 090 = Heating Height Cinguration Flow (Ton) Motor Letter
Input A = 56” H = Heating
C = 77.5” Only 2 = 2 SPD 1/4 HP Motor A = PSC Motor A
A = Heating 3 = 3 SPD 1/3 HP Motor
And A/C 4 = 4 SPD 3/4 HP Motor
Ready 5 = 5 SPD 3/4 HP Motor
G 18 D 060 A H 2 A A
PRODUCT CODE
PART NO. DESCRIPTION NOTES
90-RJF1729-AL Body, Roof Jack, Gas-FLAT Height 94 1/2 X 106 1/2
90-RJF2551-AL Body, Roof Jack, Gas-FLAT Height 102 1/2 X 128 1/2
90-RJS1729-AL Body, Roof Jack, Gas-SLOPE 3/12 Height 94 1/2 X 106 1/2
90-RJS2551-AL Body, Roof Jack, Gas-SLOPE 3/12 Height 102 1/2 X 128 1/2
90-RJS3868-AL Body, Roof Jack, Gas-SLOPE 3/12 Height 115 1/2 X 145 1/2
90-RJS6399-AL Body, Roof Jack, Gas-SLOPE 3/12 Height 140 1/2 X 176 1/2
90-RJCRWN-AL Crown, Roof Jack, Gas Use w/Gas Roof Jack Body
90-TRN-RNG Ceiling Trim Ring, Roof Jack Trim out to inside RJ - Pipe
RJTRC Kit, Transit - Roof Ja
ck -- Cap & Label For transport-Remove on site
90-OUTXT16-AL Roof Jack Outdoor Extension - Gas 16” Extend pipes / crown - 16 in.
90-INXST10-AL Roof Jack Indoor Extension - Gas 10” Extend pipes / crown - 10 in.
90-RJS56 5-6/ 12 Slope, Roof Saddle Adapter Add to RJS 3/12 Roof Jack
90-DCU0-01 86AA0013 Duct Conn + 87FB0005 Flr Base Floor to Duck 1 in. - 4 in.
90-DCU0-02 86AA0014 Duct Conn + 87FB0005 Flr Base Floor to Duck 6 in. - 8 in. STD
90-DCU0-03 86AA0015 Duct Conn + 87FB0005 Flr Base Floor to Duck 8 in. - 12 in.
90-CABEXT4 White, Top, Cabinet Extender Plate Fill alcove 76” top opening
80 AFUE - AUTOMATIC HOT SURFACE IGNITION