User manual CAME ZP8

[. . . ] For vented double-wall performance consult the factory See performance data notes for operation in the shaded areas Performance stated is at the rated power supply, performance may vary as the power supply varies from the rated Residential Products Technical Guide 50YER 173 GT-PW Water-To-Water (50YER) Series Performance Data — 50YER036 - Heating SOURCE Flow EWT °F GPM WPD PSI FT 60 20 9. 2 Table Continued on Next Page Interpolation is permissible, extrapolation is not All performance data is based upon the lower voltage of dual voltage rated units All performance data is based upon a load coaxial heat exchanger of single-walled copper construction. For vented double-wall performance consult the factory Operation below 40°F EWT is based upon 15% methanol antifreeze solution See performance data notes for operation in the shaded areas Performance stated is at the rated power supply, performance may vary as the power supply varies from the rated 50YER 174 Carrier : Turn to the Exper ts. 2 Interpolation is permissible, extrapolation is not All performance data is based upon the lower voltage of dual voltage rated units All performance data is based upon a load coaxial heat exchanger of single-walled copper construction. [. . . ] 8 Interpolation is permissible, extrapolation is not All performance data is based upon the lower voltage of dual voltage rated units All performance data is based upon a load coaxial heat exchanger of single-walled copper construction. Flow must be maintained to a level such that the LWT is maintained above 40°F [4. 4°C] when the JW3 jumper is not clipped (see example below). Otherwise, appropriate levels of a proper anti-freeze should be used in systems with leaving water temperatures of 40°F or below and the JW3 jumper should be clipped. This is due to the potential of the refrigerant temperature being as low as 32°F [0°C] with 40°F [4. 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. 7mm] thick , dual density , acoustic type glass fiber insulation. Insulation placement shall be designed in a manner that will eliminate any exposed edges. Cabinets shall have separate holes and knockouts for entrance of line voltage and low voltage control wiring. All factory-installed wiring passing through factory knockouts and openings shall be protected from sheet metal edges at openings by plastic ferrules. The control shall provide compressor sequencing (120 size), high and low pressure monitoring, field selectable water coil low temperature sensing, over/under voltage monitoring, and unit performance sentinel (UPS). refrigerant metering shall be accomplished by thermostatic expansion valve only. The control shall employ quick attach harness assemblies for low voltage connections to the control board to aid in troubleshooting or replacement. An integral terminal block with screw terminals shall be provided on the control for all field low voltage connections. a circuit breaker protected 75VA transformer shall be employed. Line voltage box lugs shall be provided for unit wiring. Units shall have knockouts for entrance of low and line voltage wiring. [. . . ] Accessories & Options Hot Water Generator An optional heat reclaiming desuperheater coil of vented double-wall construction suitable for potable water shall be provided. The coil and hot water circulating pump shall be factory mounted inside the unit. A high limit and low compressor discharge line temperature switch shall be provided to disable the pump when these conditions occur. Cupro-Nickel Heat Exchanger An optional corrosion resistant CuNi coaxial heat exchanger shall be factory installed in lieu of standard copper construction. [. . . ]