CH-2 · chiller
Chiller #2
Trane Agility HDWA200 — 250 ton VFD centrifugal, R-513A. (plant #2).
- Tier
- 1
- Consequence
- 4 CONFIRMED
- Probability
- —
- Risk
- —
- Scored
- 2026-10-24
- Consequence note
- CH-1. Seasonal backup: 2nd chiller only needed at outside-air enthalpy of 31.5 h or higher; losing one does not take the system off line but hits the indoor environment hard, so 4 (Tier 1 floor).
Identity
- Plant tag
- Chiller #2
- Mfr model
- HDWA200
- Mfr sheet tag
- CH-1 on selection (plant's #2)
- Type
- Centrifugal, 460 V VFD (Trane Agility)
- Serial No.
- L23A00088
- S.O. No.
- MLQ732A
- AED model
- AFT0315FAEA00D2B00
- AED part No.
- 493/5000017
- Date of mfg
- 25-01-24
Nameplate (unit)
- Nameplate voltage
- 460 V, 3ø 60 Hz
- Nameplate kW
- 156 kW
- RLA
- 224 A
- Line current range
- 414–506 VAC
- MCA
- 279 A
- Max overcurrent protective device
- 450 A
- Short circuit current rating
- 65,000 A
- Compressor motor
- 460 V, 3ø, 60 Hz, VFD — 156 kW / 224 A RLA
- Control circuit
- 115 V AC / 60 Hz / 3000 VA max (CPT)
- Factory charge
- 525 lb of R-513A
- Field charge
- 0 lb of R-513A
- Max refrigerant working pressure
- HI side 300 psig · LO side 200 psig
- Factory test pressure
- HI side 330 psig · LO side 260 psig
Capacity / efficiency
- Tons
- 250.00
- Full-load kW/ton
- 0.6235
- IPLV / NPLV
- 0.3929 / 0.3425 kW/ton
Electrical (full load)
- Primary power
- 155.9 kW (nameplate 156 kW)
- Primary RLA
- 224.3 A (nameplate 224 A)
- LRA
- 850 A
- MOCP / MCA
- 450 A / 279 A
- Motor speed (full load)
- 23,000 rpm
Evaporator (CHW)
- Design flow
- 597.4 GPM (2.39 gpm/ton)
- Design temps
- 55°F EWT → 45°F LWT (10° ΔT)
- Flow range
- 166.6 – 941.5 GPM
- Refrigerant sat
- 43.6°F
- Fouling
- 0.0001
Condenser (tower water)
- Design flow
- 750 GPM (3.0 gpm/ton)
- Design temps
- 85°F EWT → 94.47°F LWT
- Flow range
- 339.1 – 1181.6 GPM
- Refrigerant sat
- 96.79°F
- Fouling
- 0.00025
Refrigerant
- Type
- R-513A
- Charge
- 525 lb (factory, nameplate)
- Operating weight
- 11,521 lb
Protection
- Condenser pressure limit
- 93% of HPC (soft unload before hard trip)
- Example live
- 118.5 psig / 94°F sat condensing
Field calibration
- Point 1
- 98 kW @ 68% RLA
- Point 2 (nameplate)
- 155.9 kW @ 100% RLA
- Affine fit
- kW ≈ 1.81·RLA% − 25 (clamped ≥0)