þElectrical connections must conform to all applicable codes.
þComplete the chilled water TO and FROM PROCESS connections.
þThe optional or field installed chilled water supply and return valves must be open.
þBe sure the tank and chilled water circuit piping are filled with a water/glycol mixture. The water/glycol mix should provide freeze protection to 20°F below the leaving water temperature you’ve selected.
þThe air cooled condenser should have an adequate supply of air for proper operation.
þConnect the main power to the unit and
þRemove all tools, foreign matter and debris from the pump tank reservoir and piping.
þComplete all piping leading to and from the pump tank. Observe all applicable codes.
þComplete all electrical wiring. Observe all applicable codes.
þPrepare all related equipment in the system for operation.
Note:
∙Never switch contactor leads or motor leads for reversing rotation.
∙Do not use contactor or motor leads for phase matching.
∙Compressor noise from reverse rotation is noticeable. Do not run in this mode for more than ten (10) seconds. The compressor shuts off if run longer in this mode.
∙Reverse rotation can cause suction and discharge pressures to be approximately equal; amp draws are lower than normal.
∙If you discover that compressor rotation is reversed, correct it by switching any two main power leads into the disconnect switch or distribution block on the unit.
þOpen the 1” (approx. 25 mm) makeup water valve and allow the tank to fill until the automatic float valve shuts off. The float level should be adjusted so the standing water level is 8” (20 cm) from the top of the tank.
Page 36 of 86 | SSC Series Central Chilling Stations |
