Table of Contents
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Figure
Page
Number
Number
Section 1 - Product Description, Specifications & Dimensional Data
Figure 1-3
5
Figure 1-4
6
Figure 1-5
7
Section 3 - Pre-Installation and Boiler Mounting
Figure 3-3
11
Figure 3-5
13
Section 4 - Venting
Figure 4-5
17
Figure 4-6
18
Figure 4-7
19
Figure 4-8
19
Figure 4-9
20
Figure 4-10
20
Figure 4-15
23
Figure 4-16
23
Figure 4-18
24
Figure 4-19
24
Figure 4-20
25
Figure 4-25
30
Figure 4-26
30
Figure 4-27
30
Figure 4-28
30
Figure 4-29
31
Figure 4-33
33
Figure 4-34
38
Section 5 - Condensate Disposal
Figure 5-2
40
Section 6 - Water Piping and Trim
Figure 6-1
41
Figure 6-6
44
Figure 6-7
45
Figure 6-9
47
Figure 6-10
48
Figure 6-12
49
Figure 6-13
50
Figure 6-14
50
Figure 6-15
50
Figure 6-16
51 & 52
106308-05 - 3/23
Description
Apex - Model APX425C
Apex - Model APX525C
Apex - Models APX625C, APX725C, and APX825
Clearances To Combustible and Non-combustible Material
Boiler Stacking with Tilted Display Panel
Location of Vent Terminal Relative to Windows, Doors, Grades, Overhangs, Meters and Forced Air
Inlets - Two-Pipe System Vent Terminal (Shown), Two-Pipe System Air Intake Terminal (Not Shown)
Direct Vent - Sidewall Standard Terminations
Direct Vent - Sidewall Snorkel Terminations
Direct Vent - Sidewall Low Profile Termination
Direct Vent - Vertical Terminations
Direct Vent - Vertical Terminations w/ Sloped Roof
Field Installation CPVC/PP/SS Vent Connector
Near-Boiler Vent/Combustion Air Piping
CPVC/PVC Expansion Loop and Offset
Wall Penetration Clearances for PVC Vent Pipe
Screen Installation
Field Installation of Polypropylene Vent Adapter
Field Installation of Polypropylene Combustion Air Adapter
Locking Band Clamp Installation, M&G DuraVent or Centrotherm InnoFlue
Alternate Locking Band Clamp Installation, M&G DuraVent
Flexible Vent in Masonry Chimney with Separate Combustion Air Intake
Field Installation of Stainless Steel Vent Adapter
Multiple Boiler Direct Vent Termination
Condensate Trap and Drain Line
Factory Supplied Piping & Trim Installation - APX425C
Factory Supplied Piping & Trim Installation - APX525C, APX625C, APX725C and APX825C
Boiler Head Loss
Near Boiler Piping - Heating Only
Near Boiler Piping - Heating Plus Indirect Water Heater
Isolation of the Boiler From Oxygenated Water with A Plate Heat Exchanger
(IWH Piped as Part of Boiler Piping)
Isolation of the Boiler From Oxygenated Water with A Plate Heat Exchanger
(IWH Piped Off System Header)
Recommended Direct Immersion Header Sensor Installation Detail
Alternate "Immersion" Type Header Sensor Installation Detail
Multiple Boiler Water Piping w/Domestic Hot Water Heater
APEX
Installation, Operating, & Service Instructions
153
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