York GY9S Installation Manual

York GY9S Installation Manual

High efficiency tubular heat exchanger series
Table of Contents

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INSTALLATION MANUAL
HIGH EFFICIENCY
TUBULAR HEAT EXCHANGER SERIES
MODELS: GY9S / GM9S / GF9S
(Single Stage Upflow)
40 - 135 MBH INPUT
(11.7 - 39.6 KW) INPUT
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
ELECTRICAL POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
TWINNING AND STAGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Furnace Base Rectangular Blockoff Panel . . . . . . . . . . . . . . . . . . . . . 6
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Line Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Single Stage Heat Thermostat Connections . . . . . . . . . . . . . . . . . . . . 9
Accessory Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Typical Twinned Furnace Application . . . . . . . . . . . . . . . . . . . . . . . . 10
Single Stage Twinning Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . 10
Two-Stage Twinning Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 11
Home Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Termination Configuration - 1 Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Termination Configuration - 2 Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Unit Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Minimum Duct Sizing For Proper Airflow . . . . . . . . . . . . . . . . . . . . . . . 4
Round Duct Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Filter Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
High Altitude Conversion (40-120 MBTUH Models) . . . . . . . . . . . . . . . 7
High Altitude Conversion (135 MBTUH Models) . . . . . . . . . . . . . . . . . 7
Electrical and Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
(All Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SECTION I: SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property dam-
age.
LIST OF SECTIONS
COMBUSTION AIR AND VENT SYSTEM . . . . . . . . . . . . . . . . . . . . .11
CONDENSATE PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
START-UP AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . .19
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
LIST OF FIGURES
Termination Configuration - 2 Pipe Basement . . . . . . . . . . . . . . . . . .14
Outside and Ambient Combustion Air . . . . . . . . . . . . . . . . . . . . . . . . .17
Condensate Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Pressure Switch Tube Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Reading Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Typical Heat/Cool Speed Tap Connections . . . . . . . . . . . . . . . . . . . .22
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
LIST OF TABLES
Combustion Air Supply and Vent Piping . . . . . . . . . . . . . . . . . . . . . . .12
Estimated Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Unconfined Space Minimum Area in Square Inch . . . . . . . . . . . . . . .16
Inlet Gas Pressure Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Blower Performance CFM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or mainte-
nance can cause injury or property damage. Refer to this manual
for assistance or for additional information, consult a qualified con-
tractor, installer or service agency.
This product must be installed in strict compliance with the installa-
tion instructions and any applicable local, state, and national codes
including, but not limited to building, electrical, and mechanical
codes.
EFFICIENCY
RATING
CERTIFIED
ISO 9001
Certified Quality
Management System

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Summary of Contents for York GY9S

  • Page 1: Table Of Contents

    INSTALLATION MANUAL HIGH EFFICIENCY EFFICIENCY TUBULAR HEAT EXCHANGER SERIES RATING CERTIFIED MODELS: GY9S / GM9S / GF9S (Single Stage Upflow) ISO 9001 Certified Quality 40 - 135 MBH INPUT Management System (11.7 - 39.6 KW) INPUT LIST OF SECTIONS SAFETY ..........1 COMBUSTION AIR AND VENT SYSTEM .
  • Page 2: Safety

    105561-UIM-B-0605 SPECIFIC SAFETY RULES AND PRECAUTIONS • Check the rating plate and power supply to be sure that the elec- trical characteristics match. All models use nominal 115 VAC, 1 Only Natural gas or Propane (LP) gas are approved for use with Phase, 60-Hertz power supply.
  • Page 3: Ductwork

    105561-UIM-B-0605 INSPECTION As soon as a unit is received, it should be inspected for possible dam- age during transit. If damage is evident, the extent of the damage Improper installation in an ambient below 32ºF (0.0° C) could create should be noted on the carrier’s freight bill. A separate request for a hazard, resulting in damage, injury or death.
  • Page 4: Minimum Duct Sizing For Proper Airflow

    105561-UIM-B-0605 DUCTWORK INSTALLATION AND SUPPLY PLENUM Table 2 is a guide for determining whether the rectangular duct system CONNECTION that the furnace is being connected to be of sufficient size for proper fur- nace operation. A proper Heat Loss/Gain Calculation should be done on all Use the Example below to help you in calculating the duct area to deter- installations for proper application of equipment.
  • Page 5: Dimensions

    105561-UIM-B-0605 If a matching cooling coil is used, it may be placed directly on the fur- nace outlet and sealed to prevent leakage. Follow the coil instructions for installing the supply plenum. On all installations without a coil, a The supply air temperature MUST NEVER exceed the Maximum removable access panel is recommended in the outlet duct such that Supply Air Temperature, specified on the nameplate.
  • Page 6: Filters

    105561-UIM-B-0605 SECTION IV: GAS PIPING GAS SAFETY Removable Rectangular Base Panel. An overpressure protection device, such as a pressure regulator, must be installed in the gas piping system upstream of the furnace and must act to limit the downstream pressure to the gas valve so it Toe Plate does not exceed 0.5 PSI {14"...
  • Page 7: High Altitude Conversion (40-120 Mbtuh Models)

    105561-UIM-B-0605 TABLE 6: High Altitude Conversion (135 MBTUH Models) Type Orifice at 2,000 ft. 3,000 ft. 4,000 ft. Of Gas Sea Level (610 m) (914 m) (1219 m) The gas valve body is a very thin casting that cannot take any external pressure.
  • Page 8: Electrical Power

    105561-UIM-B-0605 SECTION V: ELECTRICAL POWER TABLE 7: Electrical and Performance Data Input/Cabinet Output Blower Size Blower Max. Air Temp. Rise Over-current Amps °F °C Protect 40/A 11.7 11.1 11 x 8 27.9 x 20.3 35 - 65 19 - 36 60/B 17.6 16.1...
  • Page 9: Twinning And Staging

    105561-UIM-B-0605 LOW VOLTAGE CONTROL WIRING CONNECTIONS HUMIDIFIER CONNECTION Install the field-supplied thermostat by following the instructions that Two 1/4” (6.4 mm) spade terminals (HUM and NEUTRAL) for humidifier come with the thermostat. With the thermostat set in the OFF position connections are located on the control board.
  • Page 10: Typical Twinned Furnace Application

    105561-UIM-B-0605 Cooling - On a call for cooling (Y signal) from the wall thermostat, both furnace blowers will come on at the same time in cooling speed. When the thermostat is satisfied, both blowers will stay on for 60 seconds, then will shut off at the same time.
  • Page 11: Two-Stage Twinning Wiring Diagram

    105561-UIM-B-0605 Single-Wire Staging Operation Heating - On a call for first-stage heat (W1 signal) from the wall thermo- stat, Furnace #1 will start the ignition sequence and the burners will When combustion air pipe is installed above a suspended ceiling or light.
  • Page 12: Combustion Air Supply And Vent Piping

    105561-UIM-B-0605 TABLE 9: Combustion Air Supply and Vent Piping MAXIMUM ELBOWS AND VENT LENGTHS Maximum Number of Elbows* Models Input Pipe Size Minimum BTUH (kW) Inches (cm) Length 40,000 (11.7) 1-1/2 (3.8) 40,000 (11.7) 2 (5.1) 60,000 (17.6) 1-1/2 (3.8) 60,000 (17.6) 2 (5.1) 60,000 (17.6)
  • Page 13: Home Layout

    105561-UIM-B-0605 VENT CLEARANCES VENT TERMINAL FIXED AIR SUPPLY CLOSED AREA WHERE TERMINAL IS NOT PERMITTED FIXED CLOSED OPERABLE FIGURE 12: Home Layout Canadian Installations US Installation A. Clearance above grade, veranda, porch, deck, or 12 inches (30 cm) 12 inches (30 cm) balcony Two-pipe (direct vent) applications: 9 inches 12 inches (30 cm) for models <100,000...
  • Page 14: Termination Configuration - 1 Pipe

    105561-UIM-B-0605 VENT SYSTEM This furnace is certified to be installed with one of two possible vent configurations. 12” MIN. Horizontal vent system. This vent system can be installed com- pletely horizontal or combinations of horizontal, vertical, or offset using elbows. 12”...
  • Page 15: Double Horizontal Sealed Combustion Air And Vent Termination

    105561-UIM-B-0605 Outdoor Combustion Air Combustion Air Intake/Vent Connections VENT This installation requires combustion air to be brought in from outdoors. This requires a properly sized pipe (Shown in Figure 19) that will bring air in from the outdoors to the furnace combustion air intake collar on the burner box.
  • Page 16: Estimated Free Area

    105561-UIM-B-0605 Apertures in a fixed louver, a grille, or screen shall have no dimen- An unconfined space is not less than 50 cu.ft (1.42 m ) per 1,000 Btu/ sion smaller than 0.25” (6.4 mm). hr (0.2928 kW) input rating for all of the appliances installed in that area.
  • Page 17: Outside And Ambient Combustion Air

    105561-UIM-B-0605 AIR SUPPLY OPENINGS AND DUCTS GABLE VENT VENT VENT 1. An opening may be used in lieu of a duct to provide to provide the outside air supply to an appliance unless otherwise permitted by the authority having VENTILATED jurisdiction.
  • Page 18: Condensate Piping

    105561-UIM-B-0605 Elevate this hose and fill with water using a funnel. Replace the condensate drain hose and clamps. 12” MINIMUM BETWEEN BOTTOM IMPORTANT: If this procedure is not followed, the unit may not properly OF BELOW AND drain on initial start up. ANY MATERIAL 12”...
  • Page 19: Start-Up And Adjustments

    105561-UIM-B-0605 LIMIT CONTROLS There is an accessory kit (1PK0601) available from Source 1, which has the following items: There is high temperature limit control located on the furnace vestibule panel near the gas valve. This is an automatic reset control that pro- •...
  • Page 20 105561-UIM-B-0605 In the USA use the following formula to calculate the furnace input. For natural gas multiply the heat content of the gas BTU/SCF or Default 1030 BTU/SCF (38.4 MJ/m ), times 2 cubic ft. (0.056 m) of gas measured at the gas meter, times a barometric pressure and temperature correction factor of 0.960;...
  • Page 21: Gas Valve

    105561-UIM-B-0605 IMPORTANT: The cap for the pressure regulator must be removed entirely to gain access to the adjustment screw. Loosening or tightening the cap does not adjust the flow of gas. Refer to Figure 25 for location of pressure regulator adjustment Be sure to relight any gas appliances that were turned off at the cap and adjustment screw on main gas valve.
  • Page 22: Reading Gas Pressure

    105561-UIM-B-0605 WITH BURNER BOX COVER IN PLACE WITH BURNER BOX COVER REMOVED BURNER BOX PRESSURE REFERENCE HOSE BURNER BOX PRESSURE FITTING REFERENCE HOSE (not used) BURNER BOX WITH COVER BURNER BOX REMOVED WITH COVER OUTLET PRESSURE OUTLET PRESSURE GAS VALVE GAS VALVE 3.5 IN 3.5 IN...
  • Page 23: Blower Performance Cfm

    105561-UIM-B-0605 TABLE 15: Blower Performance CFM AIRFLOW WITH BOTTOM OR ONE SIDE RETURN MODELS EXTERNAL STATIC PRESSURE, INCHES W.C. (kPa) Speed 0.1 (0.025) 0.2 (0.050) 0.3 (0.075) 0.4 (0.099) 0.5 (0.124) 0.6 (0.149) 0.7 (0.174) 0.8 (0.199) 0.9 (0.224) 1.0 (0.249) Input/ Airflow/cabinet CFM m...
  • Page 24: Uim-B

    105561-UIM-B-0605 APPLYING FILTER PRESSURE DROP TO Example: For a 120,000 BTUH (38.06 kW) furnace with 2 return open- DETERMINE SYSTEM AIRFLOW ings and operating on high-speed blower, it is found that total system static is 0.58” w.c. To determine the system airflow, complete the follow- To determine the approximate airflow of the unit with a filter in place, fol- ing steps: low the steps below:...
  • Page 25: Wiring Diagram

    105561-UIM-B-0605 SECTION XI: WIRING DIAGRAM FIGURE 27: Wiring Diagram Unitary Products Group...
  • Page 26 105561-UIM-B-0605 NOTES Unitary Products Group...
  • Page 27 105561-UIM-B-0605 NOTES Unitary Products Group...
  • Page 28 NOTES Subject to change without notice. Printed in U.S.A. 105561-UIM-B-0605 Copyright © by York International Corp. 2005. All rights reserved. Supersedes: 105561-UIM-A-0205 Unitary 5005 Norman Product York Group Drive 73069...

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