York YCAL0041, YCAL0065 Condenser and Cabinet Options, DX Cooler 300 Psig 21 bar DWP Waterside

chilling below 30°F (-1°C) leaving brine temperature for YCAL0041 - 0065 models. Option includes resized thermal expansion valve. (Factory-Mounted)

CHICAGO CODE RELIEF VALVES – Unit will be pro- vided with relief valves to meet Chicago code require- ments. (Factory-Mounted)

SERVICE ISOLATION VALVE – Service suction and discharge (ball type) isolation valves are added to unit per system. This option also includes a system high pressure relief valve in compliance with ASHRAE 15.

(Factory-Mounted)

HOT GAS BY-PASS – Permits continuous, stable opera- tion at capacities below the minimum step of compressor unloading to as low as 5% capacity (depending on both the unit and operating conditions) by introducing an artificial load on the cooler. Hot gas by-pass is installed on only refrigerant system #1 on two-circuited units. (Factory-Mounted)

DX COOLER 300 PSIG (21 bar) DWP WATERSIDE

–The waterside will be of 300 PSIG (21 bar) instead of the standard 150 PSIG DWP. 300 PSIG R.F. flanges are included on the DX cooler nozzles. (Factory-Mounted.) The companion flanges will be field-supplied by oth- ers.

FLANGES (VICTAULIC TYPE) – Consists of two (2) Flange adapters for grooved end pipe (standard 150 psi [10.5 bar] cooler).

FLOW SWITCH – The flow switch or its equivalent must be furnished with each unit.

150 PSIG (10.5 bar) DWP – For standard units. Johnson Controls model F61MG-1CVapor-proof SPDT, NEMA 4X switch (150 PSIG [10.5 bar] DWP), -20°F to 250°F (-29°C to 121°C), with 1” NPT connection for upright mounting in horizontal pipe. (Field-Mounted.)

300 psig (21 bar) DWP – For units with optional 300 PSIG (21 bar) DX cooler. McDonnell & Miller model FS74W Vapor-proof SPDT, NEMA 4X switch (300 PSIG (21 bar) DWP), -20°F to 300°F (-29°C to 149°C), with 1¼ inch MPT connection for upright mounting in horizontal pipe. (Field-Mounted.)

DIFFERENTIAL PRESSURE SWITCH – Alternative to an above mentioned flow switch. Pretempco model DPS300AP40PF-82582-5 (300 psi max. working pres- sure), SPDT 5 amp 125/250VAC switch, Range 0 - 40 PSID, deadband 0.5 - 0.8 psi, with 1/4” NPTE Pressure Connections.

REMOTE DX COOLER – A split system arrangement with the cooler, leaving & return water sensors, liquid line solenoid valves, filter driers, sightglasses & TXVs shipped loose for field connection to the air-cooled con- densing section. The DX cooler and outdoor section will have a nitrogen holding charge. Interconnecting rigid piping, wiring and refrigerant are by others. Includes YORK Service startup. See Form 150.62-NM1.1 (200) for other application information. (This option includes the Crankcase Heater option.)(Field-Mounted.)

CONDENSER AND CABINET OPTIONS:

Condenser coil protection against corrosive environ- ments is available by choosing any of the following op- tions. For additional application recommendations, refer to FORM 150.12-ES1. (Factory-Mounted.)

PRE-COATED FIN CONDENSER COILS – The unit's coils are constructed with black epoxy coated aluminum fins. This can provide corrosion resistance comparable to copper-fin coils in typical seashore locations. Either these or the post-coated coils (below), are recommend- ed for units being installed at the seashore or where salt spray may hit the unit.

POST-COATED DIPPED CONDENSER COILS – The unit's coils are constructed with dipped-cured condenser coils. This is another choice for seashore and other corrosive applications (with the exception of strong al- kalies, oxidizers and wet bromine, chlorine and fluorine in concentrations greater than 100 ppm).

COPPER FIN CONDENSER COILS – The unit's coils are constructed with copper fins. (This is not recom- mended for units in areas where they may be exposed to acid rain.)

ENCLOSURE PANELS (UNIT) – Tamperproof En- closure Panels prevent unauthorized access to units. Enclosure Panels can provide an aesthetically pleas- ing alternative to expensive fencing. Additionally, for proper head pressure control, YORK recommends the use of :

LOUVERED PANELS (Full Unit) – Louvered panels surround the front, back, and sides of the unit. They prevent unauthorized access and visually screen unit components. Unrestricted air flow is permitted through generously sized louvered openings. This option is ap- plicable for any outdoor design ambient temperature up to 115°F (46°C). (Factory-Mounted.)

SOUND ATTENUATION – One or both of the follow- ing sound attenuation options are recommended for

8 YORK INTERNATIONAL