Startup Record - Maritime Geothermal Nordic PC Series Installation And Service Manual

Pool Water Heat Mode:
1. Monitor the suction and discharge pressures in the PC App or the LCD interface. Adjust the flow through the unit as per diagram
002297PDG until a discharge pressure of
2. The suction pressure will depend on the room temperature, but it should be about
Record the value after 10 minutes of run time.
3. Make the following setpoint changes:

Room Temperature Stage 1 Setpoint:

Pool Water Stage 1 Setpoint:
The unit should switch to Air Reheat mode.
Air Reheat Mode:
1. Check the refrigeration gauges on the unit. The suction and discharge pressures will depend on the room temperature, but they
should be ~ 90-110 psi
2. Monitor the refrigeration gauges while the unit runs. Record the following after 10 minutes of runtime:
1. Suction pressure
2. Discharge pressure
3. Duct Return temperature (poke a small hole in the flex collar and insert probe in airstream)
4. Duct Supply temperature (poke a small hole in the flex collar and insert probe in airstream)
5. Duct Delta T (should be between
6. Compressor L1(C) current (black wire; place meter between electrical box and compressor)
Electric Plenum Heat (if installed):
1. Make the following setpoint change:

Room Temperature Auxiliary Setpoint:
2. Remove the electrical cover from the plenum heater. Place a current clamp meter around one of the supply wires. Turn on
the breaker to the plenum heater. Verify that the current draw increase as each stage of two stages is activated. Record the
final current draw on the startup record.
Heat Rejection Mode (if system is equipped with AC2-Series outdoor condenser):
1. Make the following setpoint changes:

Room RH Stage 1 Setpoint:

Room Temperature Stage 1 Setpoint:

Room Temperature Auxiliary Setpoint:

Pool Water Stage 1 Setpoint:
The unit should switch to heat rejection mode and the outdoor condenser fan should start. Verify that the suction and discharge
pressures are approximately
minutes of runtime.
Final Inspection:
1. Turn the power off to the unit (and plenum heater if installed) and remove all test equipment.
2. Install the electrical box cover on the PC unit. Install the electrical cover on the plenum heater if applicable.
3. Do a final check for leaks in the indoor (pool) loop system and ensure the area is clean.
4. Turn the power on to the unit and the plenum heater if installed. Set the controls to the final values and record them on the

startup record.

Startup Record:
1. The installer should sign and date the Startup Record and have the homeowner sign as well. The installer should leave the
Startup Record with the homeowner, retain a copy for filing, and send a copy to Maritime Geothermal Ltd. for warranty registra-
tion.
Post Startup Verification:
1. It is generally necessary to revisit the site after a few days to verify that the system is operating properly as it may take some
time to bring the pool up to temperature.
2. Force the unit to pool water heat mode (if it is not already in it) and verify the discharge pressure of the unit. Adjust the flow rate
as per 002297PDG to obtain a discharge pressure of
3. If the pool is not close to the final temperature, another visit and re-adjustment of the flow is recommended.
ISSUE 03: 1-Oct-2021
350-400 psi
90°F (or higher than current air temperature)
70°F (or lower than current pool water temperature)
and 250-350 psi respectively for a typical start-up.
4-9°F, (2-5°C)
90°F (or higher than current air temperature)
10% (or lower than current room humidity)
50°F (or lower than current air temperature)
50°F (or lower than current air temperature)
70°F (or lower than current pool water temperature)
90-110 psi and 250-350 psi (higher if outdoor temperature is high).
is obtained.
350-400 psi again if required.
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90-110 psi for a typical start-up.
Record the values after 10
002291MAN-03