WARNINGS
4
Pay Attention to These Terms
4
MODEL IDENTIFICATION
5
RECEIVING EQUIPMENT
6
CERTIFICATIONS
6
BOILER TYPES
6
Type H1 - Mechanical Modulating
6
Type H2 - Motorized Modulating
6
Type H3 - 2-Stage Controls
6
Type H4 - On-Off Controls
6
Type H5 - Mechanical Modulating
6
Type H9 - 4-Stage
6
INSTALLATION
6
Installation Codes
6
Installation Base
7
Clearances
7
Outdoor Boilers
8
High-Wind Conditions
(Outdoor Units Only)
8
Combustion and Ventilation Air
(Indoor Units Only)
8
Venting
9
Indoor Installations
10
Vent Piping
12
Vent Damper Installation
14
Plumbing
15
Gas Supply Connections
15
CONTROLS
20
Economaster Controls
20
Electronic Ignition
20
Outdoor Air Reset Temperature
Controller
20
Operating Controls
22
Limit Controls
24
CONTENTS
3
ELECTRICAL CONNECTIONS
25
START-UP
26
Before Start-Up
26
General
26
Filling System - Heating Boilers
26
Ethylene Glycol Systems -
Heating Boilers
26
Initial Start-Up - Pump And Motor
26
For Models with Automatic Gas Valves
28
After Start-Up
28
Intermittent Pilot System
Checkout (S8600)
28
Inspections
28
Burners
28
Controls
29
Suggested Inspection Schedule
29
LOW NOx BOILERS
30
Models 181 to 401
30
Operation
30
Start-Up (S8600M)
30
Blower Adjustment
30
Visual Inspection
30
Electrical
30
Flame Roll-Out Safety Switch
31
Service
31
Burner Tray Removal
31
Gas Valve Removal
32
Main Burner and Orifice Removal
32
Pilot Removal
32
Combustion Fan Removal
32
TROUBLESHOOTING
33
Service
37
Repair Section
37
REPLACEMENT PARTS
41
WARRANTY
42
