SAMUEL JACKSON HO-7-1237, Руководство по обслуживанию

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PAGE 22 of 61 HO-7-1237 & HO-4-1234 OIL-FIRED HEATERS
© SAMUEL JACKSON, INCORPORATED 2003 ALL RIGHTS RESERVED
TEST SEQUENCE EXPLANATION
HO-7-1237 & HO-4-1234 OIL-FIRED HEATERS (OIL ONLY)
(FOR SOFTWARE VERSION 1.0)
This test sequence is for checking Heaters that will operate only on oil. For Heaters with
the
Dual-Fuel Option , use the DUAL-FUEL OPTION TEST SEQUENCE
EXPLANATION supplied with the option kit.
PRELIMINARIES
-- To test a new installation, first check that all necessary
connections are made. Standard three-phase electrical power supplies are 480 V 60 Hz,
415 V 50 Hz, and 380 V 50 Hz.
The test program can be used as a methodical way to correct problems.
TO ENTER TEST SEQUENCE -- The test program may be run from either the local
panel or optional remote diagnostic display module. Press the RESET button while
turning the +/- selector switch to "- ". Hold both for 5 seconds. Watch the STATUS light
for seconds count. While still pressing RESET button, turn selector switch to "+". This
puts you in Step 0 of the test sequence. The STATUS light will confirm successful test
program entry by blinking once per second. Observe the display for test program
prompts.
TO EXIT TEST SEQUENCE -- To exit the test program, at any time, press RESET and
turn the +/- switch left “-” momentarily then release both. Killing the supply power will
also exit the test program.
STEP 0 -- The PLC’s battery status will be displayed during step 0. If battery power is
lost, retention of the heater’s error history will be lost along with other desirable custom
settings and variables. The operating program is stored in nonvolatile memory so
fundamental operation of the heater will never be jeopardized by the battery power loss.
The battery may be replaced at any time, even during the Heater’s operation, without
adversely affecting the system. However, if the battery is replaced during this step, the
display will not update until first exiting the test sequence and then restarting it. After
releasing the RESET button, press it once to go to Step 1.
STEP 1
-- Time and date are confirmed or changed in step 1. Time and date are used in
the logging of errors and alarms within the PLC. If the time and date are correct, press
RESET to proceed to step 2. If an adjustment is needed, turn the +/- selector switch to
the left (-) momentarily. The confirmation will change to “NO” and the RESET button
will advance through all time and date variables. At each position, use the +/- selector to
change the value appropriately to obtain the correct time and date. When finished,
confirm the new time and date by pressing RESET to proceed to step 2.