30
ECO-Y INSTALLATION MANUAL
Before Powering Unit, Check the Following:
NOTE:
Remove and discard the compressor shipping bolt located
at the front of the compressor mounting bracket.
•
High voltage is correct and matches nameplate.
•
Fuses, breakers and wire size correct.
•
Low voltage wiring complete.
•
Piping completed and water system cleaned and flushed.
•
Air is purged from closed loop system.
•
Isolation valves are open, water control valves or loop pumps
wired.
•
Condensate line open and correctly pitched.
•
Transformer switched to 208V if applicable.
•
Dip switches are set correctly.
•
Hot water generator pump wires are disconnected unless piping
is completed and air has been purged.
•
Blower rotates freely – foam shipping support has been
removed.
•
Blower speed correct.
•
Air filter/cleaner is clean and in position.
•
Service/access panels are in place.
•
Return air temperature is between 50-80°F heating and 60-95°F
cooling.
•
Check air coil cleanliness to insure optimum performance.
Clean as needed according to maintenance guidelines. To
obtain maximum performance the air coil should be cleaned
before startup. A 10-percent solution of dishwasher detergent
and water is recommended for both sides of coil, a thorough
water rinse should follow.
Unit Startup
Startup Steps
NOTE:
Complete the Equipment Start-Up/Commissioning Check
Sheet during this procedure. Refer to thermostat operating
instructions and complete the startup procedure.
1. Initiate a control signal to energize the blower motor. Check
blower operation.
2. Initiate a control signal to place the unit in the cooling mode.
Cooling setpoint must be set below room temperature.
3. Cooling will energize after a time delay.
4. Be sure that the compressor and water control valve or loop
pump(s) are activated.
5. Verify that the water flow rate is correct by measuring the
pressure drop through the heat exchanger using the P/T plugs
and comparing to the pressure drop table.
6. Check the temperature of both the supply and discharge water
(Refer to Unit Operating Parameters tables).
7. Check for an air temperature drop of 15°F to 25°F across the
air coil, depending on the blower speed and entering water
temperature.
8. Adjust the cooling setpoint above the room temperature and
verify that the compressor and water valve or loop pumps
deactivate.
9. Initiate a control signal to place the unit in the heating mode.
Heating set point must be set above room temperature.
10. Heating will energize after a time delay.
11. Check the temperature of both the supply and discharge water
(Refer to Unit Operating Parameters tables).
12. Check for an air temperature rise of 20°F to 35°F across the
air coil, depending on the blower speed and entering water
temperature.
13. If auxiliary electric heaters are installed, increase the heating
setpoint until the electric heat banks are sequenced on.
All stages of the auxiliary heater should be sequenced on
when the thermostat is in the Emergency Heat mode. Check
amperage of each element.
14. Adjust the heating setpoint below room temperature and
verify that the compressor and water valve or loop pumps
deactivate.
15. During all testing, check for excessive vibration, noise or water
leaks. Correct or repair as required.
16. Set system to desired normal operating mode and set
temperature to maintain desired comfort level.
17. Instruct the owner/operator in the proper operation of the
thermostat and system maintenance.
NOTE:
Be certain to fill out and forward all warranty registration
papers.