PAGE 24of 46 HG-1-1701 GAS-FIRED HEATER
LAST UPDATED: JAN-25-2022 © SAMUEL JACKSON, INCORPORATED 2011 ALL RIGHTS RESERVED
ALARM 631
NO SIGNAL - AIR FLOW #1:
Check wiring or replace air flow sensor #1.
ALARM 633
NO SIGNAL - AMBIENT TEMP:
Check wiring to burner body. Replace ambient temp
sensor.
ALARM 634
NO SIGNAL - BEFORE MIX TEMPERATURE #1:
Check wiring to BM (red)
thermocouple #1. Replace BM thermocouple.
ALARM 635
NO SIGNAL - BEFORE MIX TEMPERATURE #2:
Check wiring to BM (red)
thermocouple #2. Replace BM thermocouple.
ALARM 636
NO SIGNAL – AFTER MIX TEMPERATURE #1
: Check wiring to AM (blue)
thermocouple #1. Replace AM thermocouple.
ALARM 637
NO SIGNAL – AFTER MIX TEMPERATURE #2:
Check wiring to AM (blue)
thermocouple #2. Replace AM thermocouple.
ERROR 640
HIGH GAS PRESSURE:
Reset high gas pressure switch on gas train. Check regulator or
supply.
ERROR 641
LOW GAS PRESSURE:
Reset low gas pressure switch on gas train. Check supply, filter,
or slam-shut.
ERROR 642
LOW AIRFLOW:
Check for airflow problem. Check airflow switch.
ERROR 643
HIGH GAS PRESSURE PAST THE REGULATOR:
Check the correct operation of the
regulator.
ALARM 644
NO LEAK TEST LAST 7 DAYS:
Test will automatically be performed at next shutdown.
ALARM 645
STARTUP TAKING TOO LONG:
Reboot PLC or call factory.
ALARM 647
NO SIGNAL - GAS PRESSURE #2
: Check wiring or replace pressure sensor between
SSOV1 and SSOV2.
Содержание HG-1-1701
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