Unit Dimensions - Mr. Heater Big MAXX MHU125 Operating Instructions And Owner's Manual

318mm
(12 ½")
165 mm
(6 ½")
70 mm
(2 ¾")
AIR FLOW
HEAT EXCHANGER
(ALUMINIZED STEEL)
635 mm
(25")
C
FLUE OUTLET
DIRECT DRIVE FAN
Job Name: ___________________________ Job No.: _____________________________ Date: _______________________________
Job Location: _________________________ City: ________________________________ State/Province: _______________________
Installer: _____________________________ City: ________________________________ State/Province: _______________________
Unit Model No.: _______________________ Serial No.: ____________________________ Service Technician: ____________________
Electrical Connections Tight? _____________________________ Flue Connections Tight? _____________________________________
Supply Voltage ________________________________________ Fan Timer Operation Checked? _______________________________
Gas Piping Connections Tight & Leak-Tested? _______________ THERMOSTAT Calibrated? ___________________________________
Motor Amps __________________________________________ Heat Anticipator Properly Set? ________________________________
Furnace BTU input _____________________________________ Level? ___________________________________________________
Line Pressure _________________________________________
Manifold Pressure W.C. _________________________________

UNIT DIMENSIONS

318mm
(12 ½")
165mm
(6 ½")
HANGING
BRACKETS
70 mm
(2)
(2 ¾")
25 mm
ELECTRICAL INLETS
(1")
A
152 mm
(6")
GAS INLET
BACK VIEW
START-UP AND PERFORMANCE CHECK LIST
Compact Unit / Utility Heater
MOUNTING SLOTS
(Typical)
5/16 x 3 Inches
(8 x 76 mm)
25 mm
(1")
13 mm
(½")
470 mm
(18 ½")
BACK VIEW & SIDE VIEW, VARIABLE DIMENSIONS
A 12" (305)
25 mm
(1")
B 5.5" (140)
C 4.25" (108)
TOP VIEW
B
SERVICE ACCESS PANEL
3
Operating Instructions and Owner's Manual
50 80
17" (432)
6.5" (165)
6.75" (171)
470 mm
(18 ½")
HANGING BRACKETS (2)
ADJUSTABLE LOUVERS
125
24.67" (626.8)
8.08" (205.25)
9.43" (239.61)
SIDE VIEW