41
CHECKOUT
Inspect all wiring connections at the economizer module’s termi-
nals, and verify compliance with the installation wiring diagrams.
For checkout, review the Status of each configured parameter and
perform the Checkout tests.
NOTE: For information about menu navigation and use of the
keypad see Interface Overview on page 33.
Power Up
After the W7220 module is mounted and wired, apply power.
Initial Menu Display
On initial start up, Honeywell displays on the first line and
economizer W7220 on the second line. After a brief pause, the
revision of the software appears on the first line and the second
line will be blank.
Power Loss (Outage or Brownout)
All set points and advanced settings are restored after any pow-
er loss or interruption.
NOTE: All settings are stored in non-volatile flash memory.
Status
Use the Status menu (see Table 13) to check the parameter val-
ues for the various devices and sensors configured.
NOTE: For information about menu navigation and use of the
keypad, see Interface Overview on page 33.
Checkout Tests
Use the Checkout menu (see page 37) to test the damper opera-
tion and any configured outputs. Only items that are config-
ured are shown in the Checkout menu.
NOTE: For information about menu navigation and use of the
keypad, see Interface Overview on page 33.
To perform a Checkout test:
1. Scroll to the desired test in the Checkout menu using the
▲
and
▼
buttons.
2. Press the
(Enter) button to select the item. RUN?
appears.
3. Press the
(Enter) button to start the test. The unit
pauses and then displays IN PROGRESS. When the test is
complete, DONE appears.
4. When all desired parameters have been tested, press the
(Menu Up) button to end the test.
The Checkout tests can all be performed at the time of installa-
tion or at any time during the operation of the system as a test
that the system is operable.
TROUBLESHOOTING
Alarms
The economizer module provides alarm messages that display
on the 2-line LCD.
NOTE: Upon power up, the module waits 60 minutes before
checking for alarms. This allows time for all the configured devic-
es (e.g. sensors, actuator) to become operational. The exception is
the SAT sensor which will alarm immediately.
If one or more alarms are present and there has been no keypad
activity for at least 5 minutes, the Alarms menu displays and
cycles through the active alarms.
You can also navigate to the Alarms menu at any time.
Clearing Alarms
Once the alarm has been identified and the cause has been re-
moved (e.g. replaced faulty sensor) the alarm can be cleared
from the display.
To clear an alarm, perform the following:
1. Navigate to the desired alarm.
2. Press the
(Enter) button. ERASE? displays.
3. Press the
(Enter) button. ALARM ERASED displays.
4. Press the
(Menu up/Exit) button to complete the
action and return to the previous menu.
If the alarm still exists after clearing it, it is redisplayed within 5
seconds.
PremierLink™ (Factory Option)
For details on operating 50TCQ units equipped with the facto-
ry-installed PremierLink controller option, refer to the
Pre-
mierLink Retrofit Rooftop Controller Version 3.x Installation,
Start-Up, and Configuration Instructions
manual.
RTU-Open Controller System (Factory-Installed
Option)
For details on operating 50TCQ units equipped with the facto-
ry-installed RTU Open controller, refer to the
“Factory-In-
stalled RTU Open Multi-Protocol Controller Control, Start-
Up, Operation and Troubleshooting”
manual.
Smoke Detectors
Smoke detectors are available as factory-installed options on
50TCQ models. Smoke detectors may be specified for supply
air only, for return air without or with economizer, or in combi-
nation of supply air and return air. All components necessary
for operation are factory-provided and mounted. The unit is
factory-configured for immediate smoke detector shutdown
operation; additional wiring or modifications to unit terminal
board may be necessary to complete the unit and smoke detec-
tor configuration to meet project requirements.
Units equipped with factory-optional return air smoke detec-
tors require a relocation of the sensor module at unit installa-
tion. See Fig. 54 for the as-shipped location.
Table 19 — Single Enthalpy and Dual Enthalpy High Limit Curves
ENTHALPY
CURVE
TEMP. DRY
BULB (F)
TEMP.
DEWPOINT (F)
ENTHALPY
(btu/lb/da)
POINT P1
POINT P2
TEMP. (F)
HUMIDITY
(%RH)
TEMP. (F)
HUMIDITY
(%RH)
ES1
80
60
28.0
80
36.8
66.3
80.1
ES2
75
57
26.0
75
39.6
63.3
80.0
ES3
70
54
24.0
70
42.3
59.7
81.4
ES4
65
51
22.0
65
44.8
55.7
84.2
ES5
60
48
20.0
60
46.9
51.3
88.5
HL
86
66
32.4
86
38.9
72.4
80.3
CAUTION
Failure to follow this caution may result in damage to equip-
ment. Be sure to allow enough time for compressor startup and
shutdown between checkout tests so that you do not short-cy-
cle the compressors.
Summary of Contents for WeatherMaker 50TCQ*08
Page 4: ...4 Fig 2 Unit Dimensional Drawing 08 and 09 Size Units ...
Page 5: ...5 Fig 2 Unit Dimensional Drawing 08 and 09 Size Units cont ...
Page 6: ...6 Fig 3 Unit Dimensional Drawing 12 Size Unit ...
Page 7: ...7 Fig 3 Unit Dimensional Drawing 12 Size Unit cont ...
Page 19: ...19 Fig 25 Typical 50TCQ Control Wiring Diagram Sizes 08 09 ...
Page 20: ...20 Fig 26 Typical 50TCQ Control Wiring Diagram Size 12 ...
Page 21: ...21 Fig 27 50TCQ 08 09 Power Wiring Diagram ...
Page 22: ...22 Fig 28 Typical 50TCQ 12 Power Wiring Diagram 208 230 v 3 Phase 60Hz Unit Shown ...
Page 45: ......
