ENERGY KINETICS EK1C, Installation & Service Manual

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Accel CS Boiler - Gas Heat - Eighth Edition – January, 2015
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FAQ: “I’m getting a code that isn’t listed in this manual. What should I do?” There are several hundred different lockout,
hold, and alert codes programmed into the Sola boiler control. If a code comes up that isn’t listed and discussed in this
manual, it will be a rare event, so be sure to write down or take a picture of the code. Next, read carefully what the brief
description says, and interpret what it says almost literally. If the description doesn’t make sense or if there are any
concerns about the circumstances, then call Tech Support and email us the picture. We will help make sense of what is
going on and whether it’s a situation that requires service attention.
Message on
the Display State of
the control Details
Lockout 109
Ignition failed
Press OK to clear
lockout
Lockout After a total of six unsuccessful attempts to light, the Sola control will go into lockout.
Anything that will prevent a flame signal from being received can cause an ignition failure.
Check:
•
The gas is turned on
•
Gas pressure at valve inlet is within spec
•
Hot surface igniter glows before gas valve opens
•
Gas valve opens
•
Flame rod is connected, not open and not shorted
•
Flame signal exceeds 1uA after four seconds of flame
Hold 62
Fan speed not
proved Prepurge
Drive to
Purge Rate When the combustion blower speed does not reach the targeted fan speed within a short
time, the control will go to a hold state.
Check:
•
Is the fan running at all?
o
If not running, check for 120VAC at the fan connecter
•
Is the fan running at top speed?
o
If running at top speed, check the speed command and tach feedback
wires and connecter.
Hold 63
LCI OFF Standby Low Water Cut Off (LWCO) contacts are open before startup or open mid-cycle resulting
in immediate burner shutdown. Low water condition will prevent burner from starting. If
already running, this will shut off the burner. The Sola Control will automatically reset and
restart when water level is restored.
Hold 67
ILK OFF Standby Condensate pump high water switch contacts (if connected) are open before startup or
open mid-cycle resulting in immediate burner shutdown. High water
condition will prevent burner from starting. If already running, this will shut off the burner.
The Sola Control will automatically reset and restart when condensate pump water level
drops to normal.
Hold 79
Outlet high limit
Standby The boiler supply (outlet) temperature has exceeded the high limit temperature setting of
210ºF. The control will turn off the burner and will keep the burner off until the supply
temperature drops back down.
Check:
•
Is the burner cycling on/off frequently on high limit?
o
Is the supply temperature setting set at 210F? If so, turn down the
supply temperature setting to no more than 205F.
•
If this is a no-heat call, the boiler is going off on high limit and the boiler return
water temperature is cold, then there may be a circulation problem. Manually
open all zone valves as a test of the boiler circulation.
o
If high limit standby happens with all zones, the boiler circulator may not
be functioning.
o
If high limit standby happens with only one zone, the zone valve or zone
circulator may not be functioning.
•
Gravity flow with a failed circulator through open zone valves will provide some
heat to the zones, but will have a very high temperature drop across the zones.
•
See Hold 92 outlet sensor fault for sensor concerns
Hold 82
Stack Limit Standby The stack (flue gas) temperature has exceeded the high limit temperature setting. The
Sola control will turn off the burner and will keep the burner off until the stack temperature
drops back down.
Check:
•
Are all of the turbulators installed in the pressure vessel?
•
The stack limit setting may be field adjusted between 150ºF and 230ºF. Has the
stack limit been turned down? Note that using PVC to vent the Accel CS is not
approved, even when the stack limit setting has been lowered to 150ºF.
Hold 92
Outlet sensor Standby The supply (outlet) sensor is the high temperature limit safety. If the sensor wiring is
broken, the supply (outlet) temperature reading on the display will read
OPEN , the control