MPCQ Platinum Installation and Operation Manual
29
Maintenance
SELECT:
Settings/Maintenance
The Maintenance menu gives access to sensor trimmings, Fast Cycle, Heat Establish
Pressure, and the Password protection.
- MAINTENANCE MENU-
Pressure Trim
0.0psi
Outdoor Trim +0 F
Fast Cycle
Off
Ht-Est-Press 0.5psi
Password
System and Outdoor Sensor Trim
(Pressure) Adjustable from -3.0 to +3.0
Default: 0.0
(Outdoor) Adjustable from -5 to +5
Default: 0
SELECT:
Settings/Maintenance/Pressure Trim
SELECT:
Settings/Maintenance/Outdoor Trim
• The Heat-Timer pressure transducer and thermistor type sensors are very accurate,
and normally require no calibration. However, sometimes it may be desirable to make
small adjustments to the displayed value for either the Outdoor temperature (OD) or
the System pressure (SYS) to match other gauges or sensors on the same system. The
Trim setting can be used to adjust the displayed value.
• Do not use the Trim setting to make the Outdoor temperature sensor match that
reported on the radio or TV. Outdoor temperature can vary widely over a broadcast
range. Only trim the outdoor sensor based on an accurate thermometer reading taken
where the sensor is located.
-- PRESSURE TRIM --
0.0psi
[
]
-- OUTDOOR TRIM --
+0 F
[
]
Fast Cycle
(Available in Cycle Operating Mode Only)
On, Off
Default: Off
SELECT:
Settings/Maintenance/Fast Cycle
• The Fast Cycle changes cycle minutes to cycle seconds, so a 60 minute cycle can be
reviewed in 60 seconds.
• The Fast Cycle is primarily used to test the MPCQ Platinum cycle operation. If the
control is in the OFF part of a cycle, selecting Fast Cycle = On, will allow the remaining
cycle to be completed in less than a minute. At that point, the MPCQ Platinum will not
sequence start another cycle until the Heat is Established.
• Note the Fast Cycle feature only works when the MPCQ Platinum is in a cycle. It cannot
be used to override the Heat Established function or to prevent the Pressure Lockout.
--- FAST CYCLE ---
Off
On
Heat Establish Pressure and Pressure Lockout
(Available in Cycle Operating Mode Only)
Adjustable from 0.5 psi to 5.0 psi
Default: 0.5 psi
SELECT:
Settings/Maintenance/Heat Est Pressure
• The Pressure Lockout prevents another cycle from starting when the heating system is
still hot. Any pressure at or above the Heat Establish Pressure will indicate a Pressure
Lockout.
• Having the system pressure at or above this setting indicates that the building steam
pressure is high enough to provide heat and no stage should start until the steam pressure
has dropped. See Cycle Operation Concept on page 4.
-HEAT EST PRESSURE -
0.5psi
[ ]
Password and Local Security
Adjustable to any four letters
Default: MPCQ
SELECT:
Settings/Maintenance/Password
• The Password is used as a security measure to prevent unauthorized local control users
from making changes to the MPCQ Platinum settings.
• It will not protect against any remote changes. Remote changes have a web login screen
with a different password for each user.
• Setting up the Password feature makes servicing more difficult and can disable the system
if management or ownership should change.
• The Password feature is not active unless a user enables it. If you choose to enable the
Password, DO NOT forget the Password. Write it down and store it in a safe location
known to at least one other authorized user.
• When the Password is enabled, none of the settings, except Shift to Extend Day, Auto/
Bypass toggle switch, and Schedules can be changed without entering the Password.
PASSWORDS ENABLED?
No
Yes
--------- LOGIN ---------
Enter Password:
****
Change PASSWORD?
No
Yes
