Install Instructions
Table Of Contents
- Cover
- Table of Contents
- SECTION 1 Product Accessories
- SECTION 2 Product Characteristics
- SECTION 3 Safety Regulations
- SECTION 4 Installation
- 4.1 Location and Clearances
- 4.2 Wall Mount Bracket
- 4.3 Combustion Air
- 4.4 Venting, Exhaust
- 4.5 General Location Guideline
- 4.6 Locations for Vent Pipe Terminator
- 4.7 Air Supply and Vent Connections
- 4.8 Vent / Air Pipe Termination
- 4.9 Gas Supply and Piping
- 4.10 Gas Supply Pressure
- 4.11 Gas Setup and Adjustment
- 4.12 High Altitude Installations. 2,000’ to 10,000’
- 4.13 Natural Gas to Propane Conversion
- 4.14 Plumbing Guidelines
- 4.14 Plumbing Guidelines
- 4.15 Pressure Relief Valve
- 4.16 Disposal of Condensate
- 4.17 Electrical Wiring Connections
- 4.18 DIP Switches
- 4.19 Control Board, Electrical Diagram
- 4.20 Ladder Diagram
- 4.21 Electrical Connections
- SECTION 5 Control Display and Operation
- SECTION 6 Error Codes
- SECTION 7 Trouble Shooting
- SECTION 8 Maintenance
- SECTION 9 Installation Check
- SECTION 10 Parts
- Notes:
The FT Series Heating Only, Boiler
Page 53
4.21 Electrical Connections
Connector
Description HT SELV
#, Location, Type PIN Label
CN9
65001WS-12
1
CASE GROUND HT (120V~)
2 L Power Supply Line HT (120V~)
3 CP1 Central Heating Pump HT (120V~)
4 IT Ignitor HT (120V~)
5 HEAT/CP2 CH Pump HT (120V~)
6 GV Gas Valve HT (120V~)
7
-
- -
8 N Power Supply Neutral HT (120V~)
9-12
N
AC Power COM Line HT (120V~)
CN6
LW6A4-03
1
CP3 DHW Pump connection
HT (120V~)
3 HT (120V~)
CN1
SMW250-05D
1
RS-485
RS485 + SELV (5V)
2 RS485 - SELV (5V)
3 - -
4 RS485 + SELV (5V)
5 RS485 - SELV (5V)
CN4
LWD1140-06D
1
FAN
Unuse -
2 GND SELV (30V)
3 VDD SELV (14V)
4 Fan power(start coil) SELV (30V)
5 Fan power(end coil) SELV (30V)
6 Fan speed feedback signal SELV (14V)
CN8
SMW250-04D
1
MCU ISP
GND SELV (5V)
2 ISP /Reset port SELV (5V)
3 ISP TOOL0 Data port SELV (5V)
4 VCC SELV (5V)
CN11
LWD 1140-16
1
HWL AC 24V Input Heat Demand SELV (12V~)
9
2
LWL Low Water Level Leakage Sensor SELV (12V~)
10
3
HD Central Heating Demand SELV (5V)
11
4
TH
Connect to the Display
Control(Thermostat)
SELV (14V)
12
5
APS Unuse -
13
6
EL Unuse -
14
7
BL Burner Limit SELV (14V)
15
8
HL Condensate Block SELV (14V)
16