Installation / Operation Instruction Manual
Table Of Contents
- Cover
- TABLE OF CONTENTS
- General Information
- SECTION 2 Venting and Combustion Air
- SECTION 3 Gas supply and Piping
- SECTION 4 Water Flow and Headloss Data
- SECTION 5 Boiler Piping
- SECTION 6 Condensate Drain Trap
- SECTION 7 Electrical Connections
- 7.A Installation Warnings
- 7.B Main Power Connections
- 7.C Main Power Data
- 7.D Control Panel Layout
- 7.E Field Connections
- 7.E.1 Power
- 7.E.2 Dry Contacts
- 7.E.3 Temperature Sensors
- 7.E.4 Safety Chain
- 7.E.5 Isolation Valve
- 7.E.6 Heat Demands
- 7.E.7 Analog In and Analog Out
- 7.E.8 Dry Contacts. Run & Alarm
- 7.E.9 RS 485 for Cascade (Lead Lag)
- 7.E.10 RS485 BMS
- 7.F Modbus to BACnet Memory Map (4 pages)
- 7.G WiringDiagram
- 7.H High Voltage Wiring Diagrams (5 pages)
- 7.I Ladder Diagrams (8 pages)
- SECTION 8 Control Operation
- 8.A The Home Screen
- 8.B Login to Lock / Unlock the Display Screen
- 8.C Quick Start
- 8.D Configuration
- 8.E Service Screens
- 8.E.1 Burner
- 8.E.2 Digital I/O ( Input / Output )
- 8.E.3 Analog I/O
- 8.E.4 Screen Settings Timeout
- 8.E.5 History
- 8.E.6 Restart Touchscreen & Recalibrate
- 8.E.7 Factory Reset
- 8.E.8 HMI Model OEM only
- 8.E.9 BIC Model OEM only
- 8.E.10 Both Model. OEM only.
- 8.E.11 About (the Firmware)
- 8.E.12 O2 (Trim Set Point)
- 8.E.13 LMV
- 8.F Messages and USB
- 8.G Active Demands
- SECTION 9 Parameter Tables (3 pages)
- SECTION 10 Initial startupInstructions
- SECTION 11 Maintenance
- SECTION 12 Troubleshooting
- SECTION 13 Replacement Parts
- 13.A Frame and Jacket Assembly, Part Numbers
- 13.B Control Panel Assembly, Part Numbers
- 13.C Blower and Burner Assembly,Part Numbers. ALL Sizes
- 13.D AC Distribution Box Assemblies and Part Numbers
- 13.E Burner Door Part Numbers
- 13.F Waterway Inlet Assembly, Part Numbers
- 13.G Waterway Outlet Assembly, Part Numbers
- 13.H Gas Train Part Numbers
- 13.I Exhaust Manifold Part Numbers
Page 99
SERVICE
8.E.2 Digital I/O ( Input / Output )
There are two screens associated with the Digital I/O: Digital I/O Screen-Inputs; Digital I/O Screen-Outputs.
Navigate to the Digital I/O Screen by touching the Digital I/O Button on the Service Screen.
Digital I/O Inputs: The indicator light associated with the input is green when the input is satised. For example,
if there is adequate ow, the ow switch is satised, and the ow switch digital input indicator light is green. The
indicator light associated with the input is red, when the input is not satised. For example, if the boiler is not full of
water, the Low Water Cuto indicator light is red. All lights below a ‘not satised’ switch will also be red.
The boiler will operate until all inputs are satised (Green)
A spare input is available and is shipped jumpered at the control board in the satised condition.
NOTE: The manual reset and additional high limit functions are only active if the boiler has been purchased with the ‘high
limit’ option. In this case, a pair of switches activated by remote temperature sensing bulbs are provided. These
switches are located behind the main control panel on the left side of the boiler. See Figure 45 on page 117
Digital I/O Outputs: The
output is on, the indicator light associated with that output is green. For example, if the boiler
pump is running, the boiler pump output indicator light is green. If the output is o, the indicator light associated with that
output is red. For example, if there is no call for heat, the gas valves are o, and the gas valve indicator lights are red.
Inputs
Outputs