TriangleTube Prestige Supplement - Type 5 MCBA, Руководство по управлению приложением

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DHW CIRCULATOR POST PUMP TIME
PERIOD
(PARAMETER 33)
At the completion of a domestic call, the DHW circulator
will continue to operate for a time period set by
Parameter 33.
DHW Circulator Post Pump Time
(Parameter 33)
The post pump feature allows the heat remaining in the
boiler to be sent to the Indirect Water Heater, thus pre-
venting overheating in low temperature space heating
applications.
When adjusting the DHW circulator post pump time,
it is strongly recommended that the installer utilize
a thermostatic mixing valve on the hot water outlet
of the Indirect Water Heater. Failure to comply
could result in severe personal injury, death, or sub-
stantial property damage.
Parameter 33 Adjustment
To change Parameter 33, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA
. Press the STEP button to reach Parameter 33.
Press the “+” or “–“ button to change the setting of
Parameter 33 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.
The parameter setting is multiplied by 10.2 seconds
to reach the actual post pump time. For example,
the factory setting of 3 results in a post pump time
of 30.6 seconds.
NOTICE
DANGER
DHW NTC SENSOR ERROR CODES
Two error codes are possible when an NTC sensor is
selected for the DHW operating signal with Parameter
46.
If a short circuit is detected across the Indirect Water
Heater sensor terminals of the Prestige, a soft lockout
will occur. This lockout will be indicated by a boiler sta-
tus code of
9
, with an alternating error code of
b_33
.
Check the sensor wiring for a possible short circuit.
Verify the resistance of NTC Sensor.
If an open circuit is detected across the Indirect Water
Heater sensor terminals of the Prestige, a soft lockout
will occur. This lockout will be indicated by a boiler sta-
tus code of
9
, with an alternating error code of
b_38
.
Check sensor wiring for continuity and proper termina-
tion at Prestige terminal strip. Verify the resistance of
NTC Sensor.
During a soft lockout, the burner function is blocked
from both domestic and heating calls. The CH cir-
culator will continue to operate during a heating call.
Both error codes will automatically reset once the
condition has been corrected.
FROST / FREEZE PROTECTION OF
INDIRECT WATER HEATER
This feature is only available when an NTC sensor is
selected for the DHW operating signal with Parameter
46. If the domestic hot water temperature falls to 38°F,
the burner and DHW circulator will operate. The burner
will operate at its minimum input and the circulator will
operate until the domestic hot water temperature reach-
es 50°F. At that point, the burner and circulator will be
turned off. This feature is always active even if the
domestic hot water function has been disabled with
Parameter 2.
NOTICE
9