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39L,NX
Central Station Air-Handling Units
With Product Integrated Controls (PIC)
Installation, Operation, and
Start-Up Instructions
CONTENTS
Page • DEVICE UNDER DISCRETE OUTPUT
TEMPERATURE CONTROL
SAFETY CONSIDERATIONS...................2
• DISCRETE OUTPUT DEVICE UNDER
GENERAL ...................................2
TIMECLOCK CONTROL
• HUMIDIFICATION DEVICES
INSTALLATION .............................2-64
• AIR QUALITY SENSOR
Service Area Requirements ...................2
• OUTSIDEAIR VELOCITY PRESS
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[VariableAirVolume] units only) and high-pressure switch IMPORTANT:Thisequipmentgenerates,uses,andcan (VAV units).An ON/OFF switch is included to shut off the radiateradiofrequencyenergyandifnotinstalledand power to the control box. used in accordance with these instructions may cause PIC environmental limitations are as follows: radiointerference.Ithasbeentestedandfoundtocom- Shipping Temperature —−20 to 165 F ply with the limits of a ClassAcomputing device as Shipping Humidity —10 to 95% define
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Mount the remote control box as follows: IMPORTANT: To ease installation, control wiring is 1. Loosenandremovethe4nutssecuringthecontrolpanel located on the service side of the unit with electrical in the control box. connectors provided at all unit separation points. If a 2. Removethecontrolpanelfromthebox;setthepaneland unit is separated into pieces for installation, rejoin all nuts aside for reassembly later. connectorsintheiroriginalalpha-numericsequenceupon reassembly. Connectors for vertic
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LEGEND ABX — Air Blender AF — Airfoil CV — Constant Volume IGV — Inlet Guide Vanes *Thecvcapacityratingistheflow(gpm)throughavalveat1psipres- FC — Forward-Curved sure drop. FMB — Filter Mixing Box MXB — Mixing Box PIC — Product Integrated Controls VAV — VariableAir Volume Fig. 1 — Basic PIC Order Number 4
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LEGEND AF — Airfoil CV — Constant Volume DX — Direct Expansion FC — Forward-Curved FMB — Filter Mixing Box MXB — Mixing Box N.C. — Normally Closed N.O. — Normally Open PIC — Product Integrated Controls VAV — VariableAir Volume *The cv capacity rating is the flow (gpm) through a valve at 1 psi pressure drop. Fig. 2 — PIC Option Order Number 5
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NOTE: Dimensions in [ ] are in millimeters. Fig. 3 — Control Box for Remote Mounting Fig. 4 — Sealing Control Wiring in Flexible Conduit 6
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LEGEND (Fig. 5-12, Table 2) AFS — Airflow Switch OT — Outside-Air Thermostat AO — Analog Output PH — Preheat AOTC — Analog Output Temperature Control PL — PlugAssembly AQ — Air Quality Sensor, No. 1 PRESS — Smoke Pressurization Input 1 AQ — Air Quality Sensor, No. 2 PSIO — Processor Module 2 C— Contactor PURG — Smoke Purge Input CCW — Counterclockwise RAD — Return-Air DamperActuator CH — Channel RAT — Return-Air Temperature CR — Control Relay RFAN — Return Fan CUST — Condensing Unit Status RFR —
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ARRANGEMENT FOR SIZES 03AND 06 ARRANGEMENT FOR SIZES 08 THROUGH 35 Fig. 5 — PIC Section Control Box Component Arrangements, 39L 8
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Fig. 6 — PIC Section Control Box Component Arrangement, 39NX Sizes 07-21 9
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Fig. 7 — PIC Section Control Box Component Arrangement, 39NX Sizes 26-92 10
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Fig. 8 — Fan Motor Starter Circuit and PIC Control Wiring Interface — PIC Power for Control Circuit From Dedicated Source 11
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Table 1 — Input and Output Points MODULE, INPUT CHANNEL OUTPUT CHANNEL INPUT OUTPUT DEFAULT ADDRESS TYPE NUMBER TYPE NUMBER SAT AI 1 IGV* AO 13 OAT AI 2 MIXD AO, DO† 14 MAT AI 3 HWC AO 15 RH AI 4 CWC AO 16 LTT DI 5 SF DO 17 SPT AI 6 HIR* DO 18 PSIO (Processor) ADDRESS 1 RAT AI 7 — — — SP* AI 8 — — — AFS DI 9 — — — FLTS DI 10 — — — OARH AI 11 — — — ENT DI 12 — — — SVP* AI 31 RFVC* AO 43 RVP* AI 32 HUM1 AO, DO 44 DHH DI 33 HUM2 DO 45 TEMP AI 34 AOTC AO 46 PRES DI 35 DOTC DO 47 EVAC DI 36 DTCC DO 4
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13 Fig. 9 — Unit Wiring Schematic, 39L Sizes 03-35 (115 v, Typical)
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14 Fig. 9 — Unit Wiring Schematic, 39L Sizes 03-35 (115 v, Typical) (cont)
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15 Fig. 9 — Unit Wiring Schematic, 39L Sizes 03-35 (115 v, Typical) (cont)
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Fig. 9 — Unit Wiring Schematic, 39L Sizes 03-35 (115 v, Typical) (cont) 16
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Fig. 9 — Unit Wiring Schematic, 39L Sizes 03-35 (115 v, Typical) (cont) 17
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Fig. 9 — Unit Wiring Schematic, 39L Sizes 03-35 (115 v, Typical) (cont) 18
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19 Fig. 10 — Unit Wiring Schematic, 39NX Sizes 07-21 (115 v, Typical)
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20 Fig. 10 — Unit Wiring Schematic, 39NX Sizes 07-21 (115 v, Typical) (cont)
