Trane DX1B080A9H31B, UX1C100A9H41B, UX1B080A9H31B GAS Piping, Stage Heat / 1 Stage Cool Thermostat

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Installer’s Guide

 

 

 

TWINNING CONNECTION DIAGRAM

 

 

 

FOR TWINNING 1 STAGE FURNACES WITH

 

 

 

 

SINGLE WIRE TWINNING FEATURE

 

 

1 STAGE

1 STAGE HEAT / 1 STAGE COOL THERMOSTAT

 

OUTDOOR UNIT

 

 

 

 

HEATING / COOLING

 

 

 

 

(WITH TRANSFORMER)

 

 

 

 

THERMOSTAT

 

FURNACE NO. 1

FURNACE NO. 2

 

 

 

 

 

 

 

 

BLOWER OPERATION OF

 

 

 

 

 

UNIT NO. 2 IS SYNCRONIZED

 

 

 

 

 

WITH UNIT NO. 1 VIA SIGNALS

 

 

 

 

 

FROM TWIN CONNECTION.

 

 

 

 

TWIN

TWIN

 

RC

 

 

 

 

 

ISOLATION RELAY

 

 

 

 

 

(FIELD SUPPLIED)

 

 

 

 

 

SEE NOTE 3

 

 

 

 

 

 

 

 

 

SEE NOTE 4

 

OUTDOOR UNIT

 

 

 

 

 

(NO TRANSFORMER)

 

 

 

 

 

 

 

 

 

 

R1

 

 

 

 

 

ISOLATION RELAY

 

 

 

 

 

SEE NOTE 4

 

 

SEE NOTE 5

B/C

R1

 

 

B/C

B/C

 

 

 

 

 

 

 

 

ISOLATION RELAY

 

 

 

 

 

(FIELD SUPPLIED)

 

 

 

 

 

SEE NOTE 4

From Dwg. 21B341423 Rev. 2

 

 

 

 

 

GAS PIPING

The upflow/ horizontal furnace is shipped standard for left side installation of gas piping. A knockout is pro- vided on the right side for an alternate gas piping ar- rangement. See Figure 37.

The installation of piping shall be in accordance with piping codes and the regulations of the local gas com- pany. Pipe joint compound must be resistant to the chemical reaction with liquefied petroleum gases.

Refer to piping Table 10, for delivery sizes. Connect gas supply to the unit, using a ground joint union and a manual shut-off valve as shown in Figures 37-39.

National codes require a condensation drip leg to be in- stalled ahead of the controls as shown in Figures 37-39. The furnace and its individual shut-off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa).

The furnace must be isolated from the gas supply piping by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa).

NOTE:

Maximum pressure to the gas valve for natural gas is 13.8" W.C. Minimum pressure is 5.0" W.C. Maximum pressure to the gas valve for propane is 13.8" W.C. Minimum pressure is 11.0" W.C.

All gas fittings must be checked for leaks using a soapy solution before lighting the furnace. DO NOT CHECK WITH AN OPEN FLAME!

18-CD22D1-8

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Contents Installer’s Guide Carbon Monoxide Poisoning Hazard Safety SectionInstaller’s Guide Contents Installer’s Guide UX1-H Outline DrawingDX1-H Downflow Installations Upflow InstallationHorizontal Installation Subbase Cross SectionOutside AIR is Recommended AIR for Combustion and VentilationConfined Space Return AIR Duct Systems Duct ConnectionsOptional Filter Rack Installation for BOT- TOM Return Typical Upflow Return AIR Filter InstallationsReturn AIR Filters Upflow Furnace onlyAirflow Typical Downflow Furnace Return AIR Filter Installations Alternate Upflow Filter Clip Bracket Installation KIT09224Models Cabinet Filter Numbers QTY & SizeGeneral Venting Bonding of PVC PVC Vent Fitting MaterialVent Fitting Material Plastic Vent and Inlet AIR Connections Horizontal VentingUpflow Furnace Inside Corner Detail Possible Configurations for TWO Pipe Venting Systems BAYVENT200B Horizontal Venting Through WallCombustible Material Wall Noncombustible Material WallBAYAIR30AVENTA BAYVENT200B Direction of Stainless Steel Fitting Downward VentingInstaller’s Guide EE Caution Used Through Chimney That Vents Another GAS ApplianceVertical Applications Condensate Drain InstructionsUpflow Vertical Horizontal ApplicationsDownflow Downflow VerticalVertical Downflow HorizontalTwinning Furnaces Electrical ConnectionsStage Heating only Thermostat Stage Heat / 1 Stage Cool Thermostat GAS PipingUpflow Left Hand GAS Piping Combustion and Input Check Orifice SizesHigh Altitude Derate Final Manifold Pressure SettingsPreliminary Inspections Start UP and AdjustmentReinstallation of the Burner BOX Cover Sequence of Operation Lighting InstructionsRoom AIR Thermostat Heat Anticipator Adjustment Airflow AdjustmentBurner BOX Temperature Limit Device Power FailureLimit switch must be reset by a qualified servicer Reset After Burner BOX Limit ShutdownIntegrated Furnace Control Error Flash Codes Trane