York YCAL0041 User Manual download pdf (Page 8)

YORK INTERNATIONAL

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-1C Vapor-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

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York YCAL0041 User Manual Page 8

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