Pay app claims
Line 08 bills $88,000 (100%) for a York/Johnson Controls Basis-of-Design, AHRI 430/435 central-station rated DX system with hot water coil per Sections 23 73 14 / 23 73 15.
Evidence shows
Approved submittal 23-73-14-A is a Goodman GSX13 residential single-stage unit with ARUF air handler and electric strip heat — AHRI 210/240, not the mandated 430/435 central-station program. Net change by change orders: $0.00.
Pay Application
AIA G702/G703 · App. 6 · what the contractor billed
CONTINUATION SHEET (G703) — Schedule of Values Item 08 Decentralized DX split system — indoor air handling unit WITH HOT WATER COIL + outdoor condensing unit, YORK/JOHNSON CONTROLS Basis of Design, AHRI 430/435 CENTRAL-STATION rated, per Sections 23 73 14 and 23 73 15 Scheduled $88,000 Completed to date $88,000 (100%) p.1 Item 09 Refrigerant piping, specialties, and HOT WATER COIL CONNECTIONS at AHU-1 Scheduled $22,000 Completed $22,000 (100%) p.2 G702 line 2 — Net change by Change Orders: $0.00 p.1
Submittal Log
What was actually approved for install
SUBMITTAL LOG — APPROVED RECORD · Bldg 2900 HVAC Submittal 23-73-14-A Sections 23 73 14 / 23 73 15 Product: Goodman GSX13 RESIDENTIAL single-stage condensing unit + Goodman ARUF air handler, 10 kW ELECTRIC STRIP HEAT kit (HKSC10XC), NO HOT WATER COIL SECTION AHRI 210/240 (residential) — NOT listed under the AHRI 430/435 central-station program Action: No Exceptions Taken — 02/18/2025 sheet 2 Submittal 23-72-23-A Energy recovery units NET 01/22/25
Specification
Sections 23 73 14 / 23 73 15 · what the contract requires (real)
SECTION 23 73 14 — INDOOR AIR HANDLING UNITS (p.389)SECTION 23 73 15 — OUTDOOR CONDENSING UNITS (p.397) "Section includes Direct explansion [sic] split systems(air handlers and condensing units) WITH HOT WATER COILS." p.389"…shall be certified in accordance with the central stationair handling units certification program, which is based onAHRI STANDARD 430." p.390 2.01 MANUFACTURERS — A. YORK/JOHNSON CONTROLS (Basisof Design) B. Daikin C. Carrier D. Lennox.Substitutions: See Section 01 60 00. p.391 "The hot water coil accessory shall be provided in agalvanized steel casing… 1/2 inch OD seamless copper…" p.393
The source · real spec page (Section 23 73 14, manual p.389, verbatim)

Real project manual, 492 pp. (bidcondocs.delaware.gov) · Sections 23 73 14 / 23 73 15 · pp.389–402