Reversible Chiller 30 to 50 Tons Water-to-Water Heat Pump ENVISION REVERSIBLE CHILLER Water-to-water heat pumps are an excellent choice to provide water heating and cooling for a wide range of applications. Whether the product is used for pools, commercial aquariums, radiant floor heating, ice melt, chilled water applications, industrial process water, or to provide precisely heated or cooled water for fan coils or other applications, Envision Series products are designed to perform to the highest standards in the industry.

Large in capacity but compact in size, these units will fit through most doors for easy installation. High efficiencies are obtained using Copeland Scroll compressors — two are used in the dual circuited unit. Units are controlled using the Johnson Controls FX10 microprocessor which sequences all components and functions to achieve maximum performance, and enables easy connection to a Building Automation System with N2 Open, BACnet, or LonWorks protocols. The unit’s brazed plate heat exchangers are constructed with 316 stainless steel for long life. Environmentally responsible R-410A refrigerant is used.

As an industry leader, WaterFurnace is dedicated to innovation, quality and customer satisfaction. The team of WaterFurnace engineers, customer support staff and skilled assembly technicians is dedicated to providing the finest systems available. By choosing or specifying WaterFurnace Envision Series products, you can be assured that your customer is investing in a product that provides an exceptional combination of performance, versatility, reliability and control.

As an industry leader, WaterFurnace is dedicated to innovation, quality and customer satisfaction.

KEY FEATURES

Flexibility Quality • Designed to operate with entering source • 316 stainless steel plate with cupronickel brazed temperatures (EST) of 30° to 70°F in heating and heat exchangers 50° to 90°F in cooling. Entering load temperatures • Long-life hermetic scroll compressors (ELT) can range from 60° to 130°F in heating, and • Bidirectional thermostatic expansion valves from 30° to 90°F in cooling. • Heavy duty liquid fittings accept Victaulic couplings • Hot and chilled water from the same machine • Environmentally friendly R-410A • Modularized design for optimum capacity matching • Compressor control module and staging • Liquid line filter-dryers • Compact size allows passage through most doors • 24 VAC-75 VA controls transformer with circuit • Fast response lessens system changeover time on breaker two-pipe fan-coil systems • Structural steel frame with optional acoustic cabinet • Replacement for low efficiency water-cooled chillers • Replacement for electric boilers Options • Used for tempering of outside air, process heating and • Voltages 208-230/60/3 (30 ton only), cooling operations 460/60/3, 575/60/3 • Sound attenuation enclosure package Control • Phase Guard • All unit functions controlled by FX10 microprocessor • Communication cards for N2 Open, Lonworks • Optional communications with BacNet, LonWorks, or or BacNet N2 Open Building Automation Systems • User interface to aid in unit setup and diagnostics Accessories (field installed) • For more information, refer to Installation Manual • Connection Kit: Victaulic to 2˝ FPT IM1599 or Submittal Data SD1599 • Connection Kit: Victaulic to bolted flange

Efficiency • High cooling EERs • High heating COPs ENVISION REVERSIBLE CHILLER 30-50 Tons

1 User interface 1 (mounted on control box in units without enclosures)

2 Environmentally friendly R-410a

3 Extended range operation for entering source fluid 4 (30-90o F) [-1.1 - 32.2oC]

2 4 316 stainless steel brazed plate heat exchangers (insulated) 3 5

5 Optional noise reducing heavy gauge sheet metal enclosure (insulated) 14 6 2” (50.8 mm) Victaulic coupling water connections 13 7 Expansion valve

8 Reversible: heating & cooling

6 9 Short changeover time for 2-pipe Fan coil applications 7 10 Narrow width for passage through doorways 8 12 11 Protected wiring

12 Long life scroll compressor 11 9

13 Optional BACnet, Open N2, and LON communications

14 Control box with FX10 controller

dimensional data A Model A B C NXW360 w/o Enclosure 63.17 22.50 50.00 NKW090 w/o Enclosure [1605] [572] [1270]

NXW540 w/o Enclosure 70.00 22.50 52.00 NKW130 w/o Enclosure [1778] [572] [1321]

NXW360 w/ Enclosure 64.16 23.92 50.00 NKW090 w/ Enclosure [1630] [608] [1270]

NXW540 w/ Enclosure 71.00 23.90 52.35 NKW130 w/ Enclosure [1803] [607] [1330]

All dimensions in inches [mm] C All water connections are 2˝ Victaulic 10 B rating point data ari/ashrae/iso 13256-2

English (IP) Units

Water Loop Heat Pump Ground Loop Heat Pump Load Source Cooling Heating Cooling Heating Liquid Liquid Model Capacity Flow Flow Load 53.6°F Load 104°F Source Load 53.6°F Source Load 104°F (gpm) (gpm) Source 86°F Source 68°F Capacity EER Capacity Capacity EER Capacity COP °F °F COP Btuh Btuh/W Btuh Btuh Btuh/W Btuh Full 86.0 86.0 335,000 14.3 452,600 4.3 77 351,000 16.2 32 296,500 3.2 NXW360 Part 86.0 86.0 175,000 15.1 237,600 4.6 68 191,500 19.6 41 170,000 3.5 Full 135.0 135.0 533,400 14.5 691,200 4.3 77 558,500 16.4 32 485,800 3.3 NXW540 Part 135.0 135.0 277,300 15.2 359,400 4.5 68 302,800 19.5 41 282,600 3.7 Rev.: 3/18/08 All ratings based upon lower Voltage operation of dual Voltage rated units Load coil also called "Indoor" and Source coil also called "Outdoor" "-" not rated *Units are not certified under ARI/ISO 13256-2 metric (SI) Units

Water Loop Heat Pump Ground Loop Heat Pump Load Source Cooling Heating Cooling Heating Liquid Liquid Model Capacity Flow Flow Load 12°C Load 40°C Source Load 12°C Source Load 40°C (lps) (lps) Source 30°C Source 20°C Capacity EER Capacity Capacity EER Capacity COP °C °C COP Watts (W/W) Watts Watts (W/W) Watts Full 5.43 5.43 98,183 4.2 132,649 4.3 25 102,872 4.7 0 86,899 3.2 NXW360 Part 5.43 5.43 51,290 4.4 69,637 4.6 20 56,125 5.7 5 49,824 3.5 Full 8.52 8.52 156,331 4.2 202,579 4.3 25 163,687 4.8 0 142,380 3.3 NXW540 Part 8.52 8.52 81,272 4.5 105,334 4.5 20 88,746 5.7 5 82,825 3.7 Rev.: 3/18/08 All ratings based upon lower Voltage operation of dual Voltage rated units Load coil also called "Indoor" and Source coil also called "Outdoor" "-" not rated

ARI 550 Chiller ratings

English (IP) Units metric (SI) Units

Cooling Cooling

Leaving Load 44°F Leaving Load 12°C Load Source Load Source Ent Source 85°F Ent Source 30°C Model Capacity Liquid Liquid Model Capacity Liquid Liquid Flow Flow Flow (gpm) Flow Capacity EER Capacity (gpm) (gpm) (gpm) EER (W/W) Btuh Btuh/W Watts

Full 69.0 86.0 345,000 14.0 Full 4.35 5.4 101,114 4.3 NXW360 NXW360 Part 69.0 86.0 179,400 14.8 Part 4.4 5.4 52,579 4.6 Full 108.0 135.0 540,000 14.3 Full 6.8 8.5 158,265 4.4 NXW540 NXW540 Part 108.0 135.0 280,800 15.0 Part 6.8 8.5 82,298 4.6

All ratings based upon lower Voltage operation of dual Voltage rated units All ratings based upon lower Voltage operation of dual Voltage rated units Load coil also called "Indoor" and Source coil also called "Outdoor" Load coil also called "Indoor" and Source coil also called "Outdoor" * Units are not certified under ARI550 Rev.: 3/18/08

visit us at: waterfurnace.com WaterFurnace International, Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794. WaterFurnace has a policy of continual product <9E017  ' research and development and reserves the right to change design and specifications without notice. ©2009 WaterFurnace International, Inc.