Carrier AQUAZONE PCV015-060 Installation And Service Instructions Manual

Also see for AQUAZONE 50PCH: Installation, Start-Up and Service Instructions Installation and service instructions Installation, Start-Up and Service Instructions

27Table 12 — DIP Switch Block S2 —Accessory 1 Relay OptionsLEGENDNOTE: All other DIP switch combinations are invalid.Table 13 — DIP Switch Block S2 —Accessory 2 Relay OptionsLEGENDNOTE: All other switch combinations are invalid.Auto Dehumidification Mode or High Fan Mode — Switch 7provides selection of auto dehumidification fan mode or highfan mode. In auto dehumidification fan mode the fan speedrelay will remain off during cooling stage 2 if terminal H isactive. In high fan mode, the fan enable and fan speed relayswill turn on when terminal H is active. Set the switch to ON forauto dehumidification fan mode or to OFF for high fan mode.Switch 8 — Not used.Deluxe D Control Accessory Relay Configura-tions — The following accessory relay settings are applica-ble for both Deluxe D controls only:CYCLE WITH FAN — In this configuration, the relay will beON any time the Fan Enable relay is on.CYCLE WITH COMPRESSOR — In this configuration, therelay will be ON any time the Compressor relay is on.DIGITAL NIGHT SET BACK (NSB) — In this configura-tion, the relay will be ON if the NSB input is connected toground C.NOTE: If there are no relays configured for digital NSB, thenthe NSB and override (OVR) inputs are automatically config-ured for mechanical operation.MECHANICAL NIGHT SET BACK — When NSB input isconnected to ground C, all thermostat inputs are ignored. Athermostat set back heating call will then be connected to theOVR input. If OVR input becomes active, then the Deluxe Dcontrol will enter Night Low Limit (NLL) staged heatingmode. The NLL staged heating mode will then provide heatingduring the NSB period.Water Valve (Slow Opening) — If relay is config-ured for Water Valve (slow opening), the relay will start60 seconds prior to starting compressor relay.Outside Air Damper (OAD) — If relay is configuredfor OAD, the relay will normally be ON any time the FanEnable relay is energized. The relay will not start for30 minutes following a return to normal mode from NSB,when NSB is no longer connected to ground C. After 30 min-utes, the relay will start if the Fan Enable is set to ON.START-UPUse the procedure outlined below to initiate proper unitstart-up.NOTE: This equipment is designed for indoor installation only.Operating LimitsENVIRONMENT — This equipment is designed for indoorinstallation ONLY. Extreme variations in temperature, hu-midity and corrosive water or air will adversely affect theunit performance, reliability and service life.POWER SUPPLY — A voltage variation of ± 10% ofnameplate utilization voltage is acceptable.UNIT STARTING CONDITIONS — Depending on themodel, units start and operate in an ambient temperature of45 F with entering-air temperature at 40 F or 50 F, entering-water temperature at 20 F or 50 F and with both air and water atthe flow rates used.NOTE: These operating limits are not normal or continuousoperating conditions. Assume that such a start-up is for thepurpose of bringing the building space up to occupancytemperature. See Table 14 for operating limits.1. Restore power to system.2. Turn thermostat fan position to ON. Blower shouldstart.3. Balance airflow at registers.4. Adjust all valves to the full open position and turn onthe line power to all heat pump units.5. Operate unit in the cooling cycle first, then the heatingcycle. Refer to Table 14 for unit operating limits. Al-low 15 minutes between cooling and heating tests forpressure to equalize.NOTE: Two factors determine the operating limits of a unit:entering-air temperature and water temperature. Wheneverany of these factors are at a minimum or maximum level,the other two factors must be at a normal level to ensureproper unit operation. See Table 14.ACCESSORY 1RELAY OPTIONSDIP SWITCH POSITION1 2 3Cycle with Fan On On OnDigital NSB Off On OnWater Valve — Slow Opening On Off OnOAD On On OffNSB — Night SetbackOAD — Outside Air DamperACCESSORY 2RELAY OPTIONSDIP SWITCH POSITION4 5 6Cycle with Fan On On OnDigital NSB Off On OnWater Valve — Slow Opening On Off OnOAD On On OffNSB — Night SetbackOAD — Outside Air DamperCAUTIONTo avoid equipment damage, DO NOT leave system filledin a building without heat during the winter unless anti-freeze is added to system water. Condenser coils neverfully drain by themselves and will freeze unless winterizedwith antifreeze.WARNINGWhen the disconnect switch is closed, high voltage ispresent in some areas of the electrical panel. Exercisecaution when working with the energized equipment.Failure to heed this warning could lead to personalinjury.