Related Manuals for WaterFurnace Envision NRAC026
Summary of Contents for WaterFurnace Envision NRAC026
- Page 1 ENCASED/UNCASED AIR COILS Geothermal/Water Source Heat Pumps • R-410A Refrigerant • 2-5 Ton Dimensional Data Installation Information Maintenance IM1618 09/09...
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Page 3: Table Of Contents
ENVISION AIR COILS INSTALLATION MANUAL Table of Contents Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Initial Inspection . -
Page 4: Model Nomenclature
ENVISION AIR COILS INSTALLATION MANUAL Model Nomenclature Model Type Cabinet NR = Envision Series Refrigerant Coils C = Encased NH = Envision Series Hydronic Coils U = Uncased Configuration Capacity A = “A” Coil Refrigerant Models 026 MBTUH 036 MBTUH Coil 048 MBTUH 060 MBTUH... -
Page 5: Dimensional Data
ENVISION AIR COILS INSTALLATION MANUAL Dimensional Data FRONT LEFT SIDE BOTTOM Overall Cabinet Connections Supply Inlet Connection Connection Encased Models Suction Liquid Water Water Condensate Width Depth Height* Supply Width Supply Depth Sweat Sweat Sweat Sweat 20.8 26.0 29.1 19.0 24.1 23.4 16.8... - Page 6 ENVISION AIR COILS INSTALLATION MANUAL Dimensional Data cont. Hydronic Coil RIGHT SIDE FRONT BOTTOM Connections Overall Dimensions Condensate Connections Hydronic Connections Uncased Models Water Water Condensate Width Depth Height Sweat Sweat 20.0 24.9 25.2 15.0 17.5 10.0 13.3 NHAC060U 50.8 63.3 63.5 38.1...
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Page 7: General Installation Information
ENVISION AIR COILS INSTALLATION MANUAL General Installation Information The Envision series encased and uncased coils are designed 3. Refrigerant lines should be protected where they pass for upflow, horizontal, and bottomflow applications. The through the raw edges of holes. coils have a dry nitrogen holding charge and are equipped 4. - Page 8 ENVISION AIR COILS INSTALLATION MANUAL General Installation Information cont. Encased Coil Cabinet Configuration Horizontal Right Air Discharge Application The Envision encased coil cabinet is factory configured for upflow and horizontal left hand air discharge installation To convert the NRA/NHA encased coil cabinets for (Figure 1).
- Page 9 ENVISION AIR COILS INSTALLATION MANUAL General Installation Information cont. Refrigerant Line Connections sor section is used, follow the manufactures guidelines for installation. Use field supplied tubing of refrigerant grade. Refer to the Refrigerant Line Sizing table to determine the proper line The installer should.
- Page 10 ENVISION AIR COILS INSTALLATION MANUAL General Installation Information cont. Condensate Drain The installer should. Remove the seal cap from the bottom of the valve. To facilitate condensate removal the encased and uncased Turn the adjustment screw counterclockwise to increase coils must be properly plumbed. The drain line contains superheat and clockwise to decrease superheat.
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Page 11: Hydronic Models
RELIEF VALVE Gauge Vent LOAD PUMP Separator Back Flow Preventer / Expansion Pressure Relief Valve Tank Dielectric P/T Ports Unions WaterFurnace ENCASED HYDRONIC COIL STORAGE TANK FROM Source IN 1-1/2˝ Dielectric Unions P/T Ports P/T Ports Source OUT Ball Valve... -
Page 12: Maintenance
ENVISION AIR COILS INSTALLATION MANUAL Hydronic Models cont. Water Pressure Drop - Hydronic Coil Pressure Drop (PSI) Flow gpm 40°F 50°F 60°F 100°F 110°F 120°F 130°F 12.0 15.0 Coil Capacity vs. Entering Water Temperature Entering Water Temperature °F EAT °F 106% 100% Maintenance... - Page 13 ENVISION AIR COILS INSTALLATION MANUAL Notes...
- Page 14 ENVISION AIR COILS INSTALLATION MANUAL Notes...
- Page 16 I M 1 6 1 8 0 9/0 9 ©2009 WaterFurnace International Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794. WaterFurnace has a policy of continual product research and development and reserves the right to change design and specifications without notice.