Carrier AQUASNAP 30MPA User Manual

Also see for AQUASNAP 30MPA: Operation and service manual Installation instructions Controls, start-up, operation, service, and troubleshooting

Contents

installation instructions

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53300054-01 Printed in U.S.A. Form 30MP-1SI Pg 16 910 1-10 Replaces: NewCopyright 2010 Carrier CorporationFig. 16 — Typical Low Voltage Control WiringNOTES:1. Factory wiring is in accordance with UL 1995 standards. Field modifications or additions must be incompliance with all applicable codes.2. All units or modules have single point primary power connection. Main power must be suppliedfrom a field or factory supplied disconnect.3. Wiring for main field supply must be rated 75 C. Use copper conductors only.a. Incoming wire size range for terminal block with MCA up to 120 amps is 14 AWG (AmericanWire Gage) to 2/0.b. Incoming wire size range for terminal block with MCA from 120.1 amps to 310 amps is 6 AWGto 350 kcmil.c. Incoming wire size range for non-fused disconnect with MCA up to 50 amps is 10 AWG to2 AWG.d. Incoming wire size range for non-fused disconnect with MCA from 50.1 amps to 90 amps is 6AWG to 3/0.e. Incoming wire size range for non-fused disconnect with MCA from 90.1 amps to 250 amps is 4AWG to 350 kcmil.4. Refer to certified dimensional drawings for exact locations of the main power and control powerentrance locations.5. Terminal 24 of the LVT is for controlof chilled water pump (CWP) starter. Terminal 20 of the LVT isfor control of condenser pump (CNP) starter or condenser fan relay (CFR). The maximum loadallowed for the relays is 5 VA sealed. 10 VA inrush at 24 VAC. Field power supply is required.6. Terminal 25 of LVT is for an alarm relay. The maximum load allowed for alarm relay is 5 VA sealed,10 VA inrush at 24 VAC. Field power supply is not required.7. Make approprate connections to LVT as shown for energy management board options. The con-tacts for demand limit and ice done options must be rated for dry circuit application capable of han-dling 24 VAC load up to 50 mA. Installation of optional energy management board required.8. Remove jumper between terminals 16 and 17 when field chilled water pump interlock (CWPI) isinstalled.9. Terminals 18 and 19 of LVT are for floating point control of condenser water valve (CWV). Teminal18 commands valve closed. Terminal 19 commands valve open. The maximum load allowed forcondenser water valve is 5.5 VA at 24 VAC. Field power supply is not required.10. All discrete inputs are 24 VAC.LEGENDALMR — Alarm Relay (24 V) 5 VA MaxAWG — American Wire GageCFR — Condenser Fan RelayCNFS — Condenser Flow SwitchCNP — Condenser PumpCNPI — Condenser Pump InterlockCWP — Chilled Water PumpCWPI — Chilled Water Pump InterlockCWV — Condenser Water ValveEMM — Energy Management ModuleLVT — Low Voltage Terminal StripNEC — National Electrical CodeOAT — Outside Air TemperatureSPT — Space Temperaturea30-5039

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