Standard Range Units - Daikin Enfinity CCW Installation And Maintenance Manual

Typical water source heat pump common design temperatures
Table 2: Typical water source heat pump common design temperatures
Operating
Minimum
Mode
DB
Cooling 75
Heating 60
Water source heat pump operating temperature limits (for continuous duty)
Table 3: Water source heat pump operating temperature limits (for continuous duty)
Operating
Minimum
Mode
DB
Cooling 65
Ambient 50
Heating
50
Ambient 50
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
Minimum
Mode
DB
Cooling 50
Ambient 45
Heating 40
Ambient
40

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 flow and water flow (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 flow and water flow (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.
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Entering Air °F
Maximum
WB DB WB
63 80
– 70
Entering Air °F
Maximum
WB DB WB
55 85
– 100
– 80
– 85
Entering Air °F
Maximum
WB DB WB
40 105
– 110
– 85
– 85
Standard Range
Minimum Maximum
67 85 100
– 60 70
Standard Range
Minimum Maximum
71 55 110
– –
– 55 90
– –
Standard Range
Minimum Maximum
87 45 120
– –
– 40 95
– –
Environment
This equipment is designed for indoor installation
only. Sheltered locations such as attics, garages, etc.,
generally will not provide sufficient 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%.
15
o
Perating
Entering Water °F
Extended Range
Minimum Maximum
85 100
40 70
Entering Water °F
Extended Range
Minimum Maximum
50 110
– – –
20 90
– – –
Entering Water °F
Extended Range
Minimum Maximum
30 120
– – –
20 100
– – –
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iMits
IM 1049-9