Installation manual

35
PREMIER INSTALLATION MANUAL
High Voltage is correct and matches nameplate.
Fuses, breakers and wire size correct.
Low voltage wiring complete.
Piping completed and water system cleaned and fl ushed.
Air is purged from closed loop system.
Isolation valves are open, water control valves or loop pumps wired.
Condensate line open and correctly pitched.
Black/white and gray/white wires in unit control box have been removed if auxiliary heat has been installed in models
019-066.
Dip switches are set correctly.
DHW pump switch is “OFF” unless piping is completed and air has been purged.
Blower rotates freely – foam shipping support has been removed.
Blower speed correct (DIP switch setting ECM blowers only).
Air fi lter/cleaner is clean and in position.
Service/access panels are in place.
Return air temperature is between 50-80ºF heating and 60-95ºF cooling.
Air coil is clean.
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1. Initiate a control signal to energize the blower motor. Check blower operation. Desuperheater pump should be de-
energized.
2. Initiate a control signal to place the unit in the cooling mode. Cooling setpoint must be set below room temperature.
3. First stage 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 fl ow rate is correct by measuring the pressure drop through the heat exchanger using the P/T
plugs and comparing to unit capacity data in specifi cation catalog.
6. Check the temperature of both the supply and discharge water. (Refer to the table on page 37.)
7. Check for an air temperature drop of 15°F to 20°F across the air coil, depending on the fan speed and entering water
temperature.
8. Decrease the cooling set point several degrees and verify high-speed blower operation.
9. Adjust the cooling setpoint above the room temperature and verify that the compressor and water valve or loop pumps
deactivate.
10. Initiate a control signal to place the unit in the heating mode. Heating setpoint must be set above room temperature.
11. First stage heating will energize after a time delay.
12. Check the temperature of both the supply and discharge water. (Refer to the table on page 37.)
13. Check for an air temperature rise of 20°F to 35°F across the air coil, depending on the fan speed and entering water
temperature.
15. If auxiliary electric heaters are installed, increase the heating setpoint until the electric heat banks are sequenced on
when the thermostat is in the Emergency Heat mode. Check amperage of each element.
16. Adjust the heating setpoint below room temperature and verify that the compressor and water valve or loop pumps
deactivate.
17. During all testing, check for excessive vibration, noise or water leaks. Correct or repair as required.
18. Set system to desired normal operating mode and set temperature to maintain desired comfort level.
19. Instruct the owner/operator in the proper operation of the thermostat and system maintenance.
Note: Complete the Equipment Startup/Commissioning Check Sheet during this procedure. Refer to thermostat operating
instructions and complete the startup procedure.
Startup Steps
Startup Procedures
Before Powering Unit, Check The Following: