Daikin Enfinity CCH - Standard Range Units

oPerating liMits
Typical water source heat pump common design temperatures
Table 2: Typical water source heat pump common design temperatures
Operating
Mode
Entering Air °F Entering Water °F
Minimum Maximum Standard Range Extended Range
DB WB DB WB Minimum Maximum Minimum Maximum
Cooling 75 63 80 67 85 100 85 100
Heating 60 – 70 – 60 70 40 70
Water source heat pump operating temperature limits (for continuous duty)
Table 3: Water source heat pump operating temperature limits (for continuous duty)
Operating
Mode
Entering Air °F Entering Water °F
Minimum Maximum Standard Range Extended Range
DB WB DB WB Minimum Maximum Minimum Maximum
Cooling 65 55 85 71 55 110 50 110
Ambient 50 – 100 – – – – –
Heating 50 – 80 – 55 90 20 90
Ambient 50 – 85 – – – – –
Notes: In the heating mode, the sum of the entering air + entering water must be ≥ 100°F. MINIMUM WATER FLOW =
1.5 GPM/Ton. Maximum and minimum values may not be combined. If one value is at maximum or minimum, the
other two conditions may not exceed the normal condition for standard units. Extended range units may combine
any two maximum conditions, but not more than two, with all other conditions being normal conditions.
Water source heat pump operating temperature limits at start-up (not for continuous duty)
Table 4: Water source heat pump operating temperature limits at start-up (not for continuous duty)
Operating
Mode
Entering Air °F Entering Water °F
Minimum Maximum Standard Range Extended Range
DB WB DB WB Minimum Maximum Minimum Maximum
Cooling 50 40 105 87 45 120 30 120
Ambient 45 – 110 – – – – –
Heating 40 – 85 – 40 95 20 100
Ambient 40 – 85 – – – – –
www.DaikinApplied.com 15 IM 1049-9
Standard Range Units:
Units are designed to start in an ambient of 50°F (10°C)
with entering air at 50°F (10°C), with entering water at
50°F(10°C),withnominalairowandwaterow(3.0
GPM/Ton), for initial start-up in heating.
Note: This is not a normal or continuous operating
condition. It is assumed that such start-up is for
the purpose of bringing the building space up to
occupancy temperature.
Geothermal Range Units:
Units are designed to start in an ambient of 40°F (5°C)
with entering air at 40°F (5°C), with entering water at
20°F(-7°C),withnominalairowandwaterow(3.0
GPM/Ton), for initial start-up in heating.
Note: This is not a normal or continuous operating
condition. It is assumed that such start-up is for
the purpose of bringing the building space up to
occupancy temperature.
Environment
This equipment is designed for indoor installation
only. Sheltered locations such as attics, garages, etc.,
generallywillnotprovidesufcientprotectionagainst
extremes in temperature and/or humidity, and equipment
performance, reliability, and service life may be
adversely affected.
Power supply
A voltage variation of +/-10% of nameplate voltage is
acceptable. Three-phase system imbalance shall not
exceed 2%.