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Service, Control inputs – Lochinvar 1.3 User Manual

Page 7

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GAS PRESSURE SWITCH

ROOM THERMOSTAT /

ZONE CONTROL

FLOW SWITCH

SYSTEM SENSOR

OUTDOOR SENSOR

SEQUENCER / BUILDING

MANAGEMENT SYSTEM

LOW VOLTAGE

CONNECTION

BOARD

HEAT EXCHANGER 1 /

HEAT EXCHANGER 2 INLET

TEMPERATURE SENSOR

HEAT EXCHANGER 1 /

HEAT EXCHANGER 2 OUTLET

TEMPERATURE SENSOR

HEAT EXCHANGER 1 /

HEAT EXCHANGER 2 FLUE GAS SENSOR

HEAT EXCHANGER 1 /

HEAT EXCHANGER 2 HIGH LIMIT SENSOR

FLAME SENSOR

LOW WATER CUTOFF

BLOCKED DRAIN SWITCH

TOUCH PANEL

INTERFACE

PC INTERFACE

SECONDARY

SMART TOUCH

CONTROL MODULE

PRIMARY

SMART TOUCH

CONTROL MODULE

HW TANK SENSOR

HW THERMOSTAT

TOUCH DISPLAY

MODBUS COMMUNICATION

BOARD

Control inputs

Service Manual

1

Service

(continued)

7