System Checkout - Carrier Aquazone 50PEC09-18 Installation, Start-Up And Service Instructions Manual

Table 3 — Air and Water Limits
50PEC UNIT
Min Ambient Air
Rated Ambient Air
Max Ambient Air
Min Entering Air
Rated Entering Air, dry bulb/wet bulb
Max Entering Air, dry bulb/wet bulb
Min Entering Water
Normal Entering Water
Max Entering Water
NOTES:
1. Minimum air and water conditions can only be used at nominal flow rates.
2. 50PEC units may have up to two values at maximum or minimum with all other
parameters at normal conditions.
3. Operating limits shown are for start-up, not continuous operation. It is assumed
that such a start-up is for the purpose of bringing the space to desired occu-
pancy temperature.

System Checkout

After completing the installation, and before energizing the unit,
the following system checks should be made:
• Verify that the supply voltage to the heat pump is in accor-
dance with the nameplate ratings.
• Verify the control transformer is tapped for the correct
voltage.
• Make sure that all electrical connections are tight and
secure.
COOLING (F) HEATING (F)
50 50
80 70
100 85
50 50
80/67 70
100/83 80
40 25
85 70
110 80
• Check the electrical fusing and wiring for the correct size.
Ensure cabinet and electrical box are properly grounded. Fail-
ure to follow these procedures may result in damage to equip-
ment.
• Verify that the low voltage wiring between the thermostat
and the unit is correct.
• Verify that the water piping is complete and correct.
• Check that the water flow is correct, and adjust if neces-
sary.
• Check for water leaks and correct as necessary.
• Check the blower for free rotation, and that it is secured to
the shaft.
• Verify that the return air filter has been installed and is
clean.
• Verify that vibration isolation has been provided.
• Be certain that all access panels are secured in place.
To avoid equipment damage, DO NOT leave system filled in a
building without heat during the winter unless antifreeze is
added to system water. Condenser coils never fully drain by
themselves and will freeze unless winterized with antifreeze.
11
CAUTION
CAUTION