DF20WX2 - DF26WX2
DF20WX2-EZRE-0 DF22WX2-EZRE-0 DF26WX2-EZRE-0
Capacity
Nom Cooling (Gross) (1) kW
22.2 22.9 27.5
Total Heat of Rejection (1) kW
29.0 29.7 36.0
Capacity Steps
2 2 2
Fan Power Input (Fan Gain) (2) kW
1.16 1.86 1.86
Dimensions - W x D x H mm
1310 x 670 x 1940 1310 x 670 x 1940 1310 x 670 x 1940
Weight - Machine / Operating (3) kg
334 / 336 334 / 336 333 / 336
Construction
Panels: Galvanised Sheet Steel, Epoxy Baked Powder Paint - Black, (RAL7021)
Material/Colour
Frame: Aluminium Frame with Aluminium Corners
Evaporator
Ried Copper Tube/Turbulated Hydrophilic Coated Aluminium Fins
Cooling/Dehum Stages
2/1 2/1 2/1
Condenser
Stainless Steel Brazed Plate
Water Volume l
2.5 2.5 2.5
Evaporator Fan Motor - EC Motor
Centrifugal Forward Curved EC
Motor Fan Transmission Type
Direct Drive
Quantity
2 2 2
Motor Shaft Power (4) kW
N/A N/A N/A
Maximum ESP Pa
342 192 192
Nominal Airow m³/s
1.70 2.00 2.00
Compressor - Scroll
Tandem
Quantity
2 2 2
Oil Charge Volume (Total) l
2.40 2.40 2.40
Oil Type
Polyol Ester
Refrigeration
Single Circuit
Refrigeration Control & Type
Thermostatic Expansion Valve (Optional EEV) / R410A
Charge (Total) (5) kg
3.2 3.2 3.2
Connections
Water Inlet / Outlet mm
28 28 28
Condensate Drain Hose mm
19 19 19
Filtration
Disposable to BS EN 779 - G4 - 50mm
Quantity
3 3 3
OPTIONAL EXTRAS
Electric Heating (Total) kW
15.0 15.0 15.0
Humidier
Capacity kg/hr
0.6 - 3.0 0.6 - 3.0 0.6 - 3.0
Feed/Drain
3/4” BSPF Braided Flexible Hose / 19mm Hose Connection
Condensate Pump
Head m
8 8 8
Flow l/m
5 5 5
Drain
10mm Stainless Steel Stub Connection
Optional Fan - EC Motor
Centrifugal Backward Curved DD EC - Designed to 25Pa ESP
Motor Fan Transmission Type
Direct Drive
Quantity
2 1 1
Motor Shaft Power (4) kW
N/A N/A N/A
Speed @ 25Pa / Maximum ESP rpm
1745 / 2165 2055 / 2165 2055 / 2165
Maximum ESP Pa
450 145 145
Fan Power Input (Fan Gain) (2) kW
0.52 0.82 1.53
Low Pressure Hot Water
Copper Tube/Aluminium Fin
Capacity Gross (7) kW
16.1 16.6 16.6
Water Flow (Nominal) l/s
0.36 0.37 0.37
LPHW Connection Sizes mm
22 22 22
Threaded Connection
Brass Male Taper in
1 1 1
Mechanical
(1) Entering air 24°C/45% RH condenser water in / out: 30°C/35°C.
(2)
Fan Gain / Fan power input based upon fan operating with design airow at 25Pa ESP, these values may change with different ESP.
(3) With Standard forward curved fan motors; Machine weight includes a refrigerant charge /Operating weight includes calculated water volume.
(4) Backward curved EC fan options quote electrical power. All other options quote shaft power.
(5) For refrigerant charges, refer to Unit Refrigerant Charge (kg/Circuit).
(6)
Based on air temperature of 15.5°C leaving the evaporator coil.
(7)
Based upon low pressure hot water 82°C inlet / 71°C outlet. Air on 20°C. Refer to Low Pressure Hot Water (Optional Extra) - X & WX Models.