Jetson FWCD Series, Installation Operation & Maintenance, Page: 15 / 96

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Digit 22 — Condenser Heat Recovery
0 = No Heat Recovery – Chiller operates to maintain chilled water temperature. Condenser water
temperature is unmonitored.
1 = Heat Recovery - Instead of rejecting heat to the cooling tower, heat is recovered from the
condenser water and can be used in many commercial facilities for preheating incoming air,
washing, showering, and other everyday usage. Such facilities include:
•
Hospitals, laundry, showers, and sterilization (often separate from other systems)
•
Dormitories: laundry, showers, and general usage
•
Hotels: laundry, showers, pool heat, and general usage
All of these facilities require large quantities of makeup water that must be heated.
Digit 23 — Condenser Corrosion Resistance
0 = Standard
1 = Cupro-Nickel (Avail. Shell and Tube Only) -
In applications that can cause chemical
corrosion, galvanic corrosion and erosion, the FWCD Series chiller is available with a shell and
tube condenser that has high-resistance material tubes consisting of cupro-nickel (Cu/Ni 90/10).
Digit 24 — Condenser Control Valves
1 = Manual Valve - For a proper hydronic balance in a constant flow system, manual balancing
valves are factory installed in array headers. These valves can also be used to isolate a module in an
array for service or cleaning.
2 = Motorized Head Pressure Control Valve - The integral condenser water regulating valve
option is available to stabilize and maintain the refrigerant condensing pressure within the operating
limits of the FWCD Series modular chiller. The valve will replace one of the manual isolating
valves that come standard on every chiller and can also be used to isolate the condenser from the
cooling water circuit when needed.
3 = No Valves (Standalone Chiller) – Balancing / isolating valves are not required when chiller is
used in single unit configuration.
Digit 25 — Power Feed
0 = Single Point Power (5 kA Rating) - This option reduces the amount of installation labor by
eliminating the need to run separate power to each module in the chiller array. A single connection
point is provided to power the array. With this option, the array of chillers is delivered with a
separate power panel enclosure. This separate enclosure includes the electrical lug to land the
incoming power cables. The cabinet has circuit breakers for each module in the array. Power wiring
will be distributed to each chiller module through a wire chase that is part of each individual chiller
control panel. Upon installation, the factory supplied electrical whips will be routed to each module