Daikin UAYN400AFY1A-LFF 40.8kW Outdoor Rooftop Packaged Unit – RT Series
Daikin’s RT Series (UAYN-AFY1A) is designed and manufactured in Australia with emphasis on reliability and easy installation for commercial applications.
Available in Reverse Cycle (Heating & Cooling)
Capacities Cool/Heat (kW): 37.2/34.3, 40.8/37.6 , 45.8/44, 53.4/54.3, 66.1/64.9, 73.1/71.8, 81.9/82.0
Refrigerant R410A
| Model | UAYN400AFY1A-LFF |
| Rated Capacity (Cooling) Net kW | 40.8 |
| Rated Capacity (Heating) Net kW | 37.6 |
PROPELLER FAN
› Sharp edge fan blade curvature reduces vibration and pressure loss
› Large diameter fan quietly delivers
EC MOTOR
› Electronically commutated (EC) motor
› Exceeds IE4 efficiency
› IP44 rated (IP55 for 640 – 840 Class)
› Fan speed is modulated according to operation mode (cool or heat) & heat exchanger temp.
EASY TO ACCESS ELECTRICAL BOX
› Complete rooftop system is IP44 rated
› External cables are conveniently fed from the bottom & through the rubber grommets
› All-in-one electrical box, gain access to:
1. Rooftop power supply terminals
2. RT Touch Controller terminals
3. After hours push button contacts
4. DRED contacts (DRM1, 2, 31
& common
ELECTRONIC EXPANSION VALVE (EEV)
› Expansion valve is electronically operated for precise control of refrigerant flow into the evaporator
› Greater efficiency due to better superheat control2
› Enables fast & accurate response to heat load changes
DUAL FIXED SPEED SCROLL COMPRESSORS
› 2 step control, 50 & 100% capacity
› Compressor balance loading function, ensures the accumulated run time of each compressor is
similar to extend compressor longevity
HYDROPHILIC BLUE FIN HEAT EXCHANGER (OUTDOOR)
› Aluminium corrugated (waffle) fins with Ø7mm copper pipes
› Dual heat exchangers each with 2 rows3 at 16 fins per inch
› PE coated – an acrylic & hydrophilic coat for corrosion resistance
-
Built-in Demand Response (DRED)
Designed to enable electricity providers to reduce peak demand, when necessary, RT Series rooftop packaged units feature built-in DRED contacts. -
Electronic Expansion Valve (EEV)
For precise control of refrigerant flow, RT Series is equipped with an EEV, enabling fast & accurate response to heat load changes. -
Sequential Defrost Operation
The dual outdoor heat exchangers (HX) allow each HX to enter defrost cycle separately* for improved comfort as reduced heating capacity can still be provided to the indoor environment. -
Engineered for ease of installation
The all-in-one IP44 rated electrical box allows quick and easy access to components such as power supply terminals, RT Touch Controller terminals, after-hours pushbutton contacts and DRED contacts.
*Only applicable when indoor fan is set to run during defrost (default setting), if fan set to off both heat exchangers will run defrost simultaneously
› Footprint ideal for replacement market
› Indoor EC plug fan (fixed speed control only), adjustable with up to 300Pa ESP increase over rated
› EC motor driven outdoor propeller fans with ESP of 30Pa
› Dual fixed speed scroll compressors (2 step, 50 & 100% capacity)
› Hydrophilic blue fin indoor & outdoor coils
› Foil faced 20mm PE Thermobreak insulated panels
› Built-in 2” return air filter rails with MERV 8 filters
› Built-in demand response (DRED) capability
› After hours push button is included
› Optional vibration mounting kit & remote temperature sensor (25m)
› Built-in economy cycle function (dry bulb only)*
Sequential Defrost Operation
The dual outdoor heat exchangers allow each heat exchanger to enter defrost cycle separately**. If both heat exchangers require defrost, the 2nd heat exchanger will enter defrost cycle once the first one is
completed. Improves comfort as reduce
RT Touch Controller FEATURES
- 4.3” resistive touch screen LCD controller (480 x 272 resolution)
- Wall mounted: 88(H) x 152(W) x 32(D) mm
- Flush mounted: 88(H) x 152(W) x 9(D) mm
*Can be extended up to 50m using field supplied cable (power: 2 core AWG 12-20 & comm.: 3 core AWG 20-22)
Description
40.8 kW Cooling
37.6 kW Heating
Class 400
Corrosion resistant
