63
LEGEND
NOTES:
1. Table 7 illustrates the complete hierarchy. Your menu parameters
may be different depending on your configuration. For example if
you do not have a DCV (CO
2
) sensor, then none of the DCV
parameters appear.
2. When values are displayed, pressing and holding the
or
but-
ton causes the display to automatically increment.
3. ERV Operation: When in cooling mode AND the conditions are
NOT OK for economizing - the ERV terminal will be energized. In
the Heating mode, the ERV terminal will be energized when the OA
is below the ERV OAT set point in the set point menu.
4. STATUS —> OCCUPIED — The factory-standard Occupancy sig-
nal originates with a thermostat or other controller call for indoor
fan operation at CTB terminal G. This signal passes through the
Central Terminal Board’s OCCUPIED jumper JMP1 to the ECONO
connector and to the W7220’s OCC input terminal. An external
timeclock or relay is required to implement an Occupancy schedule
on the economizer damper position.
5. STATUS —> MA TEMP, SETPOINTS —> MAT SET — The W7220
menu parameters and labels include designations MA, MAT and
Mixed Air for the economizer cooling control sensor. On these roof-
top units, the economizer control sensor is located downstream of
the evaporator/indoor coil in the supply fan section where this sen-
sor is designated as Supply Air Temperature (SAT) sensor.
6. SETPOINTS —> DRYBLB SET — This point is not displayed if a
Return Air (differential) temperature sensor or an Outdoor Air
enthalpy sensor is connected.
7. SYSTEM SETUP parameters must be configured as noted for 2-
Speed unit operation:
EQUIPMENT = CONV
AUX2 IN = W
FAN SPEED = 2SPEED
For damper minimum position settings and checkout menu
readings, see Table 8. For dry bulb operation with a 1 speed in-
door fan, with or without DCV, see Tables 9 and 10. For enthal-
py operation with a 1 speed indoor fan, with or without DCV,
see Tables 11 and 12. For dry bulb operation with a 2 speed in-
door fan, with or without DCV, see Tables 13 and 14. For en-
thalpy operation with a 2 speed indoor fan, with or without
DCV, see Tables 15 and 16.
Table 8 — Damper Minimum Position Settings and Readings on Checkout Menu
ALARMS
(cont)
DMP CAL RUNNING
N/A
N/A
DAMPER CALIBRATION ROUTINE RUNNING
If DCV Auto enable has been programmed, when the W7220 is
completing a calibration on the dampers, this alarm will display.
Wait until the calibration is completed and the alarm will go
away. Must have OA, MA and RA sensors for DCV calibration;
set up in the Advanced setup menu.
DA SENS ALM
N/A
N/A
DISCHARGE AIR TEMPERATURE SENSOR ALARM
Discharge air temperature is out of the range set in the
ADVANCED SETUP Menu. Check the temperature of the dis-
charge air.
SYS ALARM
N/A
N/A
When AUX1-O is set to SYS and there is any alarm (e.g., failed
sensors, etc.), the AUX1-O terminal has 24 vac out.
ACT UNDER V
N/A
N/A
ACTUATOR VOLTAGE LOW
Voltage received by actuator is above expected range.
ACT OVER V
N/A
N/A
ACTUATOR VOLTAGE HIGH
Voltage received by actuator is below expected range.
ACT STALLED
N/A
N/A
ACTUATOR STALLED
Actuator stopped before achieving commanded position.
Table 7 — Menu Structure (cont)
MENU
PARAMETER
PARAMETER
DEFAULT
VALUE
PARAMETER
RANGE AND
INCREMENT
NOTES
CLO —
Compressor Lockout
ERV
—
Energy Recovery Ventilator
LCD
—
Liquid Crystal Display
MA
—
Mixed Air
MAT —
Mixed Air Temperature
N/A
—
Not Applicable
OA
—
Outdoor Air
OAT —
Outdoor Air Temperature
OCC —
Occupied
RA
—
Return Air
RAT
—
Return Air Temperature
RTU
—
Rooftop Unit
SYS
—
System
DEMAND CONTROLLED
VENTILATION
(CO
2
SENSOR)
FAN SPEED
SETPOINTS
CHECKOUT
NO
1
MIN POS
VMAX–HS
N/A
N/A
2
MIN POS H
VMAX–HS
MIN POS L
VMAX–LS
YES
1
VENT MIN
VMAX–HS
VENT MAX
VMAX–HS
2
VENT MIN H
VMAX–HS
VENT MAX H
VMAX–LS
VENT MIN L
N/A
VENT MAX L
N/A
Summary of Contents for WeatherMaker 50TC07 Series
Page 4: ...4 Fig 2 Dimensional Drawing for Units Built on and After 4 15 19 Size 07 ...
Page 5: ...5 Fig 3 Dimensional Drawing for Units Built Prior to 4 15 19 Size 07 ...
Page 6: ...6 Fig 4 Corner Weights and Clearances Size 07 ...
Page 7: ...7 Fig 5 Base Rail Details Size 07 ...
Page 8: ...8 Fig 6 Thru the Base Charts Size 07 ...
Page 9: ...9 Fig 7 Unit Dimensional Drawing Size 08 09 12 ...
Page 10: ...10 Fig 7 Unit Dimensional Drawing Size 08 09 12 cont ...
Page 11: ...11 Fig 8 Unit Dimensional Drawing Size 14 ...
Page 12: ...12 Fig 8 Unit Dimensional Drawing Size 14 cont ...
Page 13: ...13 Fig 9 Unit Dimensional Drawing Size 16 Unit ...
Page 14: ...14 Fig 9 Unit Dimensional Drawing Size 16 Unit cont ...
Page 19: ...19 Fig 14 Roof Curb Details Size 16 Unit ...
Page 26: ...26 Fig 34 50TC 07 Control Wiring Diagram ...
Page 27: ...27 Fig 35 50TC 07 Power Wiring Diagram ...
Page 28: ...28 Fig 36 50TC M08 12 Control Wiring Diagram ...
Page 29: ...29 Fig 37 50TC D E Wiring Diagram 08 14 Size Units ...
Page 30: ...30 Fig 38 Single Stage Cooling without VFD Power Wiring Diagram Sizes 08 12 ...
Page 31: ...31 Fig 39 2 Stage Cooling with VFD Power Wiring Diagram Sizes 08 12 ...
Page 32: ...32 Fig 40 2 Stage Cooling with VFD Power Wiring Diagram Size 14 ...
Page 33: ...33 Fig 41 50TC 16 Wiring Diagram ...
Page 34: ...34 Fig 42 2 Stage Cooling with VFD Power Wiring Diagram Size 16 ...
Page 35: ...35 Fig 43 50TC 07 Units Wiring Diagram with Humidi MiZer System Option ...
Page 36: ...36 Fig 44 50TC 08 14 Units Wiring Diagram with Humidi MiZer System Option ...
Page 37: ...37 Fig 45 50TC 16 Wiring Diagram with Humidi MiZer System Option ...
Page 69: ...69 Fig 97 Typical PremierLink Control Wiring Diagram Size 07 Shown ...
Page 70: ...70 Fig 98 50TC M08 12 PremierLink Control Wiring Diagram ...
Page 71: ...71 Fig 99 Typical PremierLink Control Wiring Diagram Dual Compressor Sizes 08 12 shown ...
Page 72: ...72 Fig 100 Typical PremierLink Control Wiring Diagram with Humidi MiZer System Option ...
Page 73: ...73 Fig 101 Typical RTU Open Controller Wiring Diagram 50TC 07 Units ...
Page 74: ...74 Fig 102 50TC M08 12 RTU Open Controller Wiring Diagram ...
Page 75: ...75 Fig 103 Typical RTU Open Controller Wiring Diagram 50TC D E08 14 Units ...
Page 76: ...76 Fig 104 RTU Open Controller Wiring Diagram 50TC 16 Unit ...
Page 83: ...83 Fig 113 UltraTech Scroll Compressor ...
Page 84: ......
Page 85: ......