System Warranty

This equipment is designed to operate properly and produce the rated capacity when installed in accordance with good refrigeration practice.

The following conditions should be adhered to when installing this unit to maintain the manufacturers warranty:

(a)System piping must be in accordance with good refrigeration practices

(b)Inert gas must be charged into the piping during brazing

(c)The power supply to the unit must meet the following conditions:

•All voltages must be +/- 10% of the n a m e p l a t e ratings

•Phase (voltage) imbalance cannot exceed 2%

(d)All control and safety switch circuits must be properly connected according to the wiring diagram

(e)The factory installed wiring must not be changed without written factory approval

Rigging

Warning: Careful considerations for lifting should be made before the unit is lifted by any means. The only part of the unit designed to carry any of the lifting load is the welded channel base. The unit may be lifted at the base with a forklift or by

Figure 1. Vibration Pad and Spring Isolator

Installation and Operations Manual

means of cables at the four corners of the base. If cables are used, the lifting cables should be prevented from contacting any of the unit piping or electrical components.

Location Of Equipment - Indoor

Clearances

The parallel systems should be located so they are level and easily serviced. The minimum suggested clearance around the units should be 24 inches at the rear and 42 inches in the front of panel (or as required by National or Local Codes). For parallel system units placed end to end, 24 inches between units is suggested.

Floor & Foundation Requirements

The total weight of a single unit will vary between 1200 pounds and 10,000 pounds. Allowances must be made for the parallel rack and all other equipment installed in the same area as the parallel units. The location and installation of all equipment should be in accordance with all local and national code requirements.

While each unit is constructed with a welded steel base frame adequately designed to withstand vibration, the natural pulsating action of the interconnected motor-compressors may cause considerable noise and vibration if the unit is not mounted on a firm level surface and isolated from the structure of the building.

Vibration Mounts

In ordinary ground level or basement installations, all that is necessary to assure a vibration-free installation is to place the unit on the concrete floor with the waffle-surfaced resilient pads supplied. See Figure 2 for suggested pad locations. Mezzanine and other installations require some special considerations. The equivalent of 6 inch thick properly reinforced concrete floor must be provided for mounting parallel units above grade. It is recommended that the suggestions previously given for rigid floor construction on above-grade installations be closely adhered to. If this is not possible, special vibration

NOTE: Turn each leveling nut until the tip casting rises 1/4” to 3/8” above the bottom casting. MOUNT ADJUSTMENT SHOULD NEVER EXCEED 3/4”.

Figure 2. Vibration Pad Locations

Part # 25000102