Johnson Controls 050, Установка, эксплуатация и обслуживание

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JOHNSON CONTROLS
71
SECTION 5 – SEQUENCE OF OPERATION
FORM 100.50-NOM6
ISSUE DATE: 8/07/2017
5
PIED COOLING SETPOINT” or “CV UNOC-
CUPIED COOLING SETPOINT”
the control will
bring on the first compressor from System 2 and
start a 5 minute timer.
• If after 3 or 5 minutes the return air temperature
is 2.0° F or more above the “CV OCCUPIED
COOLING SETPOINT” or “CV UNOCCUPIED
COOLING SETPOINT”
the control will bring on
the first compressor of System 2 and start a 3 min -
ute timer.
• If after 3 or 5 minutes the return air temperature
is 1.5° F or more above the “CV OCCUPIED
COOLING SETPOINT” or “CV UNOCCUPIED
COOLING SETPOINT”
the control will bring on
the second compressor of System 2.
The Simplicity Control will stage off the cooling as
follows:
• If the return air temperature is within 0.5° F of
the “CV OCCUPIED COOLING SETPOINT”
or “CV UNOCCUPIED COOLING SETPOINT”
the control turns off the System 2 compressors, if
ON, with a 30 second delay between the compres-
sors provided the minimum compressor run times
have been satisfied.
• If the return air temperature is equal to or below
the “CV OCCUPIED COOLING SETPOINT” or
“CV UNOCCUPIED COOLING SETPOINT” the
control turns off the System 1 compressors with
a 30 second delay between the compressors pro-
vided the minimum compressor run times have
been satisfied.
The Simplicity Control has the following timing cool-
ing functions:
• Minimum off time of 5 minutes.
• Minimum ON time of 3 minutes – This parameter
can be programmed from between 1 and 10 min-
utes using the COOLING SETUP tab of the in the
Simplicity PC software package.
Heating Operation – Occupied or Unoccupied
The Simplicity Control will stage ON the heat as fol-
lows:
• When the return air temperature is 1.5° F to 1.9° F
below the “CV OCCUPIED HEATING” or “CV
UNOCCUPIED HEATING SETPOINT” the con-
trol energizes the first stage of heat.
• When the return air temperature is 2.0° F to 2.4° F
below the
“CV OCCUPIED HEATING”
or
“CV
UNOCCUPIED HEATING SETPOINT” the con-
trol energizes the second stage of heat.
• When the return air temperature is 2.5° F or more
below the “CV OCCUPIED HEATING” or “CV
UNOCCUPIED HEATING SETPOINT” the con-
trol energizes the third stage of heat.
The Simplicity Control will stage off the heat as fol-
lows:
• When the return air temperature is 2.4° F below
the “CV OCCUPIED HEATING” or “CV UNOC-
CUPIED HEATING SETPOINT” the third stage
of heating will turn off.
• When the return air temperature is 1.9° F below
the “CV OCCUPIED HEATING” or “CV UN-
OCCUPIED HEATING SETPOINT”
the second
stage of heat will turn off.
• When the return air temperature is 0.1° F above
the “CV OCCUPIED HEATING” or “CV UNOC-
CUPIED HEATING SETPOINT” the first stage of
heating will turn off.
The Simplicity Control has the following heating tim-
ing functions:
• A minimum off time of 2 minutes.
• A minimum ON time of 3 minutes.
• There is a 30 second time delay between stages.
VARIABLE AIR VOLUME (VAV)
A Variable Air Volume (VAV) unit can be controlled by
four methods:
1. Stage Thermostat
2. Communicated Space Temperature
3. Hardwired Space Temperature
4. Stand Alone - Return Air Temperature
Cooling - Occupied with Thermostat
The following System Parameters must be programmed
through the Simplicity Control for VAV operation:
• “VAV COOLING SUPPLY AIR TEMP UPPER
SETPOINT” – using Parameter 23 under the
PROGRAM key on the Simplicity control board
or under the COOLING SETUP tab in the Sim-
plicity PC software package.