Lennox International Inc. TUA125S User Manual

Page of 21
Page 1 
 
START-UP AND PERFORMANCE CHECK LIST 
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_________________________________ 
Unit Operation Checked?__________________________ 
Gas Piping Connections Tight & Leak Tested?________ 
THERMOSTAT 
Motor Amps___________________________________ 
   Calibrated?___________________________________ 
Unit BTU Input________________________________ 
   Heat Anticipator Properly Set?___________________ 
Line Pressure__________________________________ 
   Level?_______________________________________ 
Manifold Pressure___________________in. w. c.  
 
 
 
 
45, 60, and 75 UNIT DIMENSIONS 
(25)
TOP VIEW
 
MOUNTING SLOTS (Typical)
5/16 x 3 Inches (8 x 76 mm)
18-1/2
(470)
1
(25)
1/2
(13)
1
3-1/4
(83)
13
(330)
7-1/4
(184)
7
(178)
13
 
(330)
 
3
(76)
HANGING
BRACKETS 
(2)
ELECTRICAL 
BOX (45)
 
DIMENSION
45
60/75
A
12 (305)
17 (432)
B
5-1/2 (140)
6-1/2 (165)
C
7-3/4 (197)
10-1/4 (260
D
1-3/4 (44)
3-1/4 (83)
E
5-1/4 (133)
5-3/4 (146)
GAS 
INLET
26
(660)
5-3/4
(146)
FLUE
OUTLET
BACK VIEW
 
C
1
(25)
A
COMBUSTION AIR  
INLET
 
D
E
DIRECT
DRIVE FAN
AIR
 
FLOW
 
HEAT
 
EXCHANGER
 
SIDE VIEW
 
THUMB 
SCREW
 
18-1/2
 
(470)
 
HANGING
 
BRACKETS (2)
 
B
SITE 
GLASS
 
ELECTRICAL
BOX (60, 75)
 
ADJUSTABLE 
LOUVERS