8
STEP 5 - Testing
All Models with Red (Low Water) and Amber (Test) Lights
OFF
ON
a. Before filling the system,
turn on the electric power
to the boiler. Set the room thermostat to "heat".
For Series PS-802
the burner will come on briefly
(10 seconds or less) and then shut off which verifies
proper operation. The burner
will not
operate without
water in the system. The low water cut-off's red LED
should be illuminated.
For Series PS-852
the burner will come on briefly
and then shut off, verifying proper operation. The
burner
will not
operate without water in the system.
The low water cut-off's red LED should be illuminated.
b.
Fill the system with water.
For Series PS-802
the low water cut-off's red LED should shut
off in about 15 seconds, after the water contacts the probe.
For Series PS-852
the low water cut-off's red LED should shut
off after the water contacts the probe.
AA
BB
G
c.
Hold the test switch (AA) down while noting the
amber LED (BB) on top of the control housing (G).
1.
If the amber LED (BB) glows dimly,
the water
level is above the probe.
2.
If the
amber LED (BB) is off,
the water level may
be below the probe or the water is too pure and
may require the addition of boiler water treatment.
3.
If the
amber LED (BB) glows brightly,
it could indi-
cate a grounded (non-operable) probe. If this is
the case, proceed to "Troubleshooting".
AA
d.
Test for correct burner circuit wiring.
1.
Hold down the test switch (AA) while the burner
is running for more than:
• 12 seconds for PS-802
• 2 seconds for PS-852
2.
If the burner shuts off while the test switch is
depressed, the burner circuit is wired correctly.
AA
CC
e.
For the automatic reset models -
Release the
test switch (AA) and the burner should resume
firing provided that the boiler water is in contact
with the probe.
For the manual reset models -
The burner will
not return to normal operation until the reset
switch (CC) is set.
f.
Check for proper operation of all of the limit and operat-
ing controls, before leaving the site.
Page
All Models with Red (Low Water) and Amber (Test) Lights
8
Series PS-802 and PS-802-M with Red (Low Water) and Green (Power) Lights
9
Series PS-852 and PS-852-M with Red (Low Water) and Green (Power) Lights
10
