User manual CARRIER GT-PX GEOTHERMAL

[. . . ] 9°C) operation • Microprocessor controls standard • 1” swivel-type water connections for distributor (residential) models 036 & 060 • Flush securely-mounted corner post water connections (no backup wrench required) for model 120 • Compressor “run” and “fault” lights on the front of the cabinet • Seven Safeties Standard • Optional double-wall load heat exchanger and HWG (hot water generator - desuperheater) Residential Products Technical Guide 50YER 169 GT-PW Water-To-Water (50YER) Series GT-PW Water-To-Water (50YER) Series Features 1 2 3 4 5 6 7 Copeland™ High Efficiency Scroll Compressor Optional Hot Water Generator With Internal Pump Fully Insulated Water and Refrigerant Lines Fully Insulated Compressor Section Powder Coated Steel Cabinet For Long Life, Taupe Metallic System Operating LED Lights Unit Performance Sentinel: Automatic Alert System Lets You Know If The System Is Not Running At Peak Performance Exclusive Dual Level Compressor Vibration Isolation For Ultra Quiet Operation Multiple Removable Access Panels for Service 5 2 9 7 4 6 3 8 9 1 8 50YER 170 Carrier : Turn to the Exper ts. 10 32, 300 52, 800 105, 600 50YER120 120 All ratings based upon 208V operation Indoor coil also called “Load” and outdoor coil also called “Source” ASHRAE/AHRI/ISO 13256-2. 10 All ratings based upon 208V operation Indoor coil also called “Load” and outdoor coil also called “Source” 50YER 172 Carrier : Turn to the Exper ts. [. . . ] 4°C] LWT, which may lead to a nuisance cutout due to the activation of the Low Temperature Protection. JW3 should never be clipped for standard range equipment or systems without antifreeze. To calculate LWT, rearrange the formula for HE as follows: HE = TD x GPM x 500, where HE = Heat of Extraction (Btuh); TD = temperature difference (EWT - LWT) and GPM = U. 5 x 500) TD = 10°F LWT = EWT - TD LWT = 50 - 10 = 40°F In this example, as long as the EWT does not fall below 50°F, the system will operate as designed. For EWTs below 50°F, higher flow rates will be required (open loop systems, for example, require at least 2 gpm/ton when EWT is below 50°F). 49] Water Connection Size Source/Load HWG (in) Weight - Operating (lbs) [kg] Weight - Packaged (lbs) [kg] 348 [158] 373 [169] 1" Swivel 1" Swivel 360 [163] 385 [175] 1-1/2 FPT 1/2" FPT 726 [329] 770 [349] Water Volume (Source) Gallons (Liters) Dual isolated compressor mounting Balanced port expansion valve (TXV) Insulated Source and Load Water Coils standard Insulated Refrigerant Circuit standard Compressor on (green) and fault (red) light 0. 2 Max Fuse/ HACR 35 50 80 HACR circuit breaker in USA only Residential units come standard with 75VA transformer, HWG pump, and HWG connections Residential Products Technical Guide 50YER 187 GT-PW Water-To-Water (50YER) Series 50YER036 & 50YER060 Electrical Wiring Diagram - 96B0116N01 50YER 188 Carrier : Turn to the Exper ts. Carrier Geothermal Heat Pump Systems 50YER120 Electrical Wiring Diagram - 96B0117N07 Residential Products Technical Guide 50YER 189 GT-PW Water-To-Water (50YER) Series Engineering Guide Specifications General The water-to-water heating/cooling units shall be supplied completely factory built for an entering source water temperature range from 20° to 120°F [-6. 9°C] and entering load water temperature range from 50° to 130°F [10. All equipment listed in this section must be rated in accordance with The Air Conditioning, Heating and Refrigeration Institute / International Standards Organization (AHRI / ISO) and Environmental Testing Laboratories for United States and Canada (ETL-US-C). All units shall be fully quality tested by factory run testing under normal operating conditions and water flow rates as described herein. Contractor shall be responsible for providing control circuitry and indicator lights for units not providing this feature. Refrigerant Circuit Units shall have a sealed refrigerant circuit including a high efficiency scroll compressor designed for heat pump operation, a thermostatic expansion valve for refrigerant metering, a reversing valve, coaxial (tube in tube) refrigerant to water heat exchangers, and safety controls including a high pressure switch, low pressure switch (loss of charge), and low temperature sensors. Access fittings shall be factory installed on high and low pressure refrigerant lines to facilitate field service. Activation of any safety device shall prevent compressor operation via a microprocessor lockout circuit. Compressor(s) will be mounted on rubber grommets to a large heavy gauge compressor mounting plate, which is then isolated from the cabinet base with rubber grommets for maximized vibration attenuation. Refrigerant to water heat exchangers shall be of copper inner water tube and steel refrigerant outer tube design, rated to withstand 625 PSIG [3101 kPa] working refrigerant pressure and 500 PSIG [3101 kPa] working water pressure. refrigerant metering shall be accomplished by thermostatic expansion valve only. [. . . ] Cupro-Nickel Heat Exchanger An optional corrosion resistant CuNi coaxial heat exchanger shall be factory installed in lieu of standard copper construction. Double-Walled Load Heat Exchanger An optional double-walled load side heat exchanger shall be factory installed when unit is dedicated to providing domestic hot water. Flow Controller (field installed) A self-contained module shall provide all fluid pumping, fill and connection requirements for ground-source closed-loop systems up to 20 GPM. [. . . ]