Trane IntelliPak SXHK Series User Manual

SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and
servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific
knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could
result in death or serious injury. When working on the equipment, observe all precautions in the literature
and on the tags, stickers, and labels that are attached to the equipment.
IntelliPak™
Commercial Single-Zone Rooftop Air Conditioners
with CV, VAV, or SZVAV Controls
October 2011 RT-SVX36G-EN
Installation, Operation,
and Maintenance
“A” and later Design Sequence
SAHL
*20, *25, *30, *40, *50, *55, *60, *70, *75
SEHL, SFHL, SLHL, SSHL, SXHL
*20, *25, *30, *40, *50, *55, *60, *70, *75,
*24, *29, *36, *48, *59, *73, *80, *89
SXHK, SEHK, SFHK, SLHK, SSHK
*90, *11, *12, *13

Trane IntelliPak SXHK Series Specifications

General

Refrigerant	R-410A
Compressor Type	Scroll
Dimensions	Varies by model
Efficiency	High
Voltage	208/230/460/575V

Summary

Installation, Operation, and Maintenance

IntelliPak Commercial Single-Zone Rooftop Air Conditioners

Overview of Trane IntelliPak Commercial Single-Zone Rooftop Air Conditioners with CV, VAV, or SZVAV Controls.

Warnings, Cautions and Notices

Proper Field Wiring and Grounding Required!

Emphasizes the need for qualified personnel for field wiring and grounding to prevent hazards.

Personal Protective Equipment (PPE) Required!

Details the mandatory PPE for installation and servicing due to potential hazards.

Risk of Roof Collapsing!

Warns about ensuring adequate structural roof support to prevent collapse.

Fiberglass Wool!

Warns about exposure to fiberglass wool fibers and required PPE.

Model Number Descriptions

General Information

Constant Volume (CV), Single Zone Variable Air Volume (SZVAV) & Variable Air Volume (VAV) Sensors and Controls

Describes sensors and controls for CV, SZVAV, and VAV systems.

Single Zone Variable Air Volume (SZVAV) Only

Details the IntelliPak platform's support for Single Zone VAV.

VFD Control

Describes VFD control for the supply fan in Single Zone VAV units.

Occupied Cooling Operation

Describes the unit's operation during occupied cooling mode.

Occupied Heating Operation

Compressor (DX) Cooling

Cooling Sequence

Describes the unit's cooling sequence of operation.

Constant Volume (CV), Single Zone Variable Air Volume (SZVAV), & Variable Air Volume (VAV) Units

Details operations for CV, SZVAV, and VAV units.

Single Zone Variable Air Volume (VAV) Units

Supply Duct Static Pressure Control (Occupied)

Installation

Unit Inspection

Checklist for inspecting the unit upon arrival at the job site.

Unit Clearances

Unit Rigging & Placement

Provides safety and procedural guidance for rigging and placing units.

General Unit Requirements

Checklist for general requirements before and during unit installation.

Main Electrical Power Requirements

Details requirements for main electrical power supply and connections.

Requirements for Electric Heat Units

Specifies requirements for electric heat units, including voltage and wiring.

Requirements for Gas Heat

Details requirements for gas heat units, including piping and flue assembly.

Requirements for Hot Water Heat (SLH_)

Specifies requirements for hot water heat units, including piping and valve installation.

Requirements for Steam Heat (SSH_)

Details requirements for steam heat units, including piping and valve installation.

Condensate Drain Connections

Removing Supply and Exhaust/Return Fan Shipping Channels

O/A Sensor & Tubing Installation

Remove Evaporative Condenser Fan Shipping Brackets

Evaporative Condenser Make-up Water and Drain Line Installation

Gas Heat Units (SFH_)

Details installation requirements for gas heat units.

Connecting the Gas Supply Line to the Furnace Gas Train

Provides steps for connecting the gas supply line to the furnace gas train.

Flue Assembly Installation

Hot Water Heat Units (SLH_)

Details installation requirements for hot water heat units.

Steam Heat Units (SSH_)

Specifies installation requirements for steam heat units.

Electric Heat Units (SEH_)

Provides requirements for electric heat units, including wiring.

Main Unit Power Wiring

Details requirements for main unit power wiring.

Field Installed Control Wiring

Provides guidelines for field-installed control wiring.

Emergency Override Definitions (with LCI-I/BCI-I module installed)

Installation Checklist

Checklist for the startup technician for 20-130 Ton Air-Cooled and Evaporative Condensing units.

Startup Checklist — 20-75 ton air-cooled

Checklist for startup technicians for 20-75 ton air-cooled units.

Startup checklist (continued)— 20-75 ton air-cooled

Continuation of the startup checklist for 20-75 ton air-cooled units.

Startup checklist — 24-89 ton evaporative cooling

Checklist for startup technicians for 24-89 ton evaporative cooling units.

Startup checklist (continued)— 24-89 ton evaporative cooling

Continuation of the startup checklist for 24-89 ton evaporative cooling units.

IntelliPak startup checklist — 90-130 ton air cooled

Checklist for startup technicians for 90-130 ton air cooled IntelliPak units.

IntelliPak startup checklist (continued)— 90-130 ton air cooled

Continuation of the startup checklist for 90-130 ton air cooled IntelliPak units.

Unit Start Up

Cooling Sequence of Operation

Explains the operational sequence for cooling, including time delays.

Compressor Crankcase Heaters

SZVAV Cooling Sequence of Operation

Describes the cooling sequence for Single Zone VAV units with VFD.

Cooling Stages Minimum Fan Speed

Supply Fan Operation – Speed Control:

Units with Traq Sensor

Return Plenum Pressure Control (Units equipped with Return Fan)

Compressor Failure!

Important notice regarding compressor protection before starting.

Gas Heating Sequence of Operation

Details the sequence of operation for gas heating.

Standard Two Stage Gas Furnace

Explains the ignition system and operation of a standard two-stage gas furnace.

Modulating Gas Sequence of Operation—Full and Limited Modulating Gas Furnace

Details the operation sequence for modulating gas furnaces.

Electric Heat Sequence of Operation

Explains the sequence of operation for electric heat units.

Wet Heat Sequence of Operation

Describes the operation sequence for steam or hot water heat units.

Freeze Protection

Compressor Start-Up (All Systems)

Provides the procedure for starting compressors on all systems.

Refrigerant Charging

Details the procedure for refrigerant evacuation and charging.

Evaporative Condenser Startup

Provides startup procedures for evaporative and air-cooled condensers.

To Remove Shipping Brackets

Instructions for removing fan shipping brackets before unit startup.

Pressure Curves

Provides curves for checking operating pressures of compressors and fans.

Thermostatic Expansion Valves

Charging by Subcooling

Details the procedure for charging the system by subcooling.

Low Ambient Dampers

Explains the operation and installation of low ambient dampers.

Damper Adjustment (Factory or Field Installed)

Electric, Steam and Hot Water Start-Up

Provides startup procedures for electric, steam, and hot water heating systems.

Gas Furnace Start-Up (Constant Volume & Variable Air Volume Systems)

Details startup procedures for gas furnaces to ensure proper air/fuel mixture.

Two Stage Gas Furnace

Explains the high-fire adjustment procedure for two-stage gas furnaces.

Full Modulating Gas Furnace

Describes full modulating gas furnaces and their heat exchangers.

Unit control

Final Unit Checkout

Performs final checks after startup procedures are complete.

Maintenance

Fan Belt Adjustment

Details the inspection and adjustment procedures for fan belts.

Scroll Compressor Replacement

Provides guidance on replacing scroll compressors.

Refrigeration System

Covers R-410A refrigerant handling and system pressures.

Scroll Compressor Replacements

Explains how to diagnose and replace scroll compressors.

CSHD Compressors (20-70 & 80 Ton)

CSHN Compressors (75 & 89-130 Ton)

Electrical Phasing:

Explains the importance of correct electrical phasing for compressors.

Precision Suction Restrictor:

Suction Line Filter/Drier

VFD Programming Parameters

Details how to verify and program VFD parameters.

Monthly Maintenance

Provides a checklist for monthly maintenance tasks.

Coil Cleaning

Provides instructions for cleaning evaporator, microchannel condenser, and reheat coils.

Microchannel Condenser Coil Repair and Replacement

Steam or Hot Water Coils

Evaporative Condenser Coil

Covers sump water management and coil cleaning for evaporative condensers.

Sump Water Management

Copper Coil Cleaning

Fall Restraint

Details the use of fall restraint slots and equipment for safety.

Warranty