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035-17468-001 Rev.  A (801)

Unitary Products Group

5

 FIGURE 1 : 

Dimensions - Upflow models

20

6-3/8

1-1/4

2-3/4

6-1/8

B

A

28-1/2

6-7/8

9-7/8

20-5/8

1-3/4

14-1/2

22-3/4

B

20

D
INTAKE
CONNECTION

FRONT

TOP IMAGE

E
VENT CONNECTION
(vent size)

BOTTOM IMAGE

FRONT

3/4”
FLANGE

A

C

28-1/2

23

WITH K.O.
REMOVED

MODELS

P*XU -V & G9V-UH

A

B

C

D

E

60 / 55 / 1200 /”B”

80 / 75 / 1600 /”C”
100 / 95 / 2000 /”C”
120 / 112 / 2000 /”D”

17-1/2

21
21

24-1/2

16-1/4

19-3/4
19-3/4
23-1/4

13-1/8

16-5/8
16-5/8
20-1/8

2

2
2
3

2

2
2

2

1

1. Vent pipe must be increased to 3” on this unit.

OPTIONAL SIDE RETURN
CUT-OUT (EITHER SIDE)

CONDENSATE
DRAIN

T’STAT
WIRING
7/8” K.G.

3/4

6

1-3/4

4-1/8

3-1/8

8-7/8

45

Table 1: 

RATINGS & PHYSICAL / ELECTRICAL DATA - UPFLOW MODELS

P*XU-V/G9V—UH

AFUE1

LOW
FIRE

TEMP. 

RISE °F

HIGH

FIRE

TEMP. 

RISE °F

MAX. 

OUTLET 

AIR 

TEMP. °F

BLOWER

TOTAL

UNIT

AMPS

MAX. 

OVER-CURRENT 

PROTECT2

MIN WIRE SIZE 
(AWG) @ 75 FT.

ONE WAY2

INPU

MBH

H/L

OUTPUT

MBH

H/L

NOM. 

CFM

HP

AMPS

SIZE

60/39

55/36

1200

93.5

45 - 75

45 - 75

175

1/2

1.7

11x8

9.6

20

14

80/52

75/48

1600

93.5

30 - 60

30 - 60

165

3/4

3.6

11x8

12.0

20

14

100/65

95/60

2000

94.0

30 - 60

30 - 60

160

1

4.3

11x10

14.5

20

12

120/78

112/72

2000

94.0

45 - 75

45 - 75

175

1

4.4

11x10

14.5

20

12

1.

AFUE numbers are determined in accordance with DOE test procedures

2.

Wire size and overcurrent protection must comply with the National Electrical Code (NFPA-70-latest edition).

·

For altitudes above 2,000 ft., reduce capacity 4% for each 1,000 ft. above sea level. Refer to instructions 035-14460-000.

·

Wire size based on copper conductors, 60°C, 3% voltage drop.

·

Continuous return air temperature must not be below 55°F.

Содержание PxXD-G9V-DH series

Страница 1: ...HORIZONTAL P XD V G9V DH 80 To 120 MBH Input 035 17468 001 Rev A 801 TABLE OF CONTENTS GENERAL INFORMATION 2 SPECIFIC UNIT INFORMATION 3 DUCTWORK 7 GAS PIPING 11 ELECTRICAL POWER CONNECTION 12 ELECTRI...

Страница 2: ...n writing Also before installation the unit should be checked for screws or bolts which may have loos ened in transit There are no shipping or spacer brackets which need to be removed NOTES CAUTIONS W...

Страница 3: ...dance with all national and local building safety codes and requirements or in the absence of local codes with the National Fuel Gas Code ANSI Z223 1 or CAN CGA B149 1 or 2 Installation Code latest ed...

Страница 4: ...osi tion The furnace shall be located using these guidelines 1 Where a minimum amount of air intake vent piping and elbows will be required 2 As centralized with the air distribution system as possi b...

Страница 5: ...ODELS P XU V G9V UH AFUE 1 LOW FIRE TEMP RISE F HIGH FIRE TEMP RISE F MAX OUTLET AIR TEMP F BLOWER TOTAL UNIT AMPS MAX OVER CURRENT PROTECT 2 MIN WIRE SIZE AWG 75 FT ONE WAY 2 INPU MBH H L OUTPUT MBH...

Страница 6: ...OPERATING WT LBS INPU MBH H L OUTPUT MBH H L NOM CFM HP AMPS SIZE 80 52 75 48 1200 17 1 2 92 0 35 65 35 65 165 1 2 1 7 11 x 8 12 0 20 14 128 120 78 112 72 2000 24 1 2 92 0 40 70 40 70 170 1 4 4 11 x 1...

Страница 7: ...talling the supply plenum On all installations without a coil a removable access panel is recommended in the outlet duct such that smoke or reflected light would be observable inside the casing to ind...

Страница 8: ...ons Bottom Return Bottom return applications normally pull return air through a base platform or return air plenum Be sure the return plat form structure is suitable to support the weight of the furna...

Страница 9: ...e into the filter rack and secure it with a sheet metal screw Refer to the unit rating plate for furnace model then see the dimensions page of this instruction for return air plenum dimensions Install...

Страница 10: ...earance to the condensate trap and drain pipe A minimum of 8 clearance is required for this purpose NOTE See crawl space installation for suspending the fur nace in attic installations CRAWL SPACE INS...

Страница 11: ...s tem by closing its individual external manual shutoff valve during any pressure testing of the gas supply piping system at pressures equal to or less than 1 2 psig 3 48 kpa The furnace and its indiv...

Страница 12: ...equip ment ground wire must be connected to the power supply ground Remove the screws retaining the wiring box cover Route the power wiring through the opening in the unit into the junction box with a...

Страница 13: ...ri ous accessories Refer to Figure 15 for connection details ELECTRONIC AIR CLEANER CONNECTION The junction box contains a clearly marked wire for connec tion to an electronic air cleaner This wire pr...

Страница 14: ...ible from a swimming pool or a location where swimming pool chemicals might be stored Be sure the terminal assem bly follows the outdoor clearances listed in Table 3 for U S installations In Canada re...

Страница 15: ...When selecting the location for combustion air vent termina tion the following should be considered 1 Comply with all clearance requirements as listed below 2 Termination should be positioned where ve...

Страница 16: ...ation for Additional Clearance FIGURE 21 Vertical Termination OVERHANG 12 MINIMUM VENT MAINTAIN 12 CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL OR GRADE WHICHEVER IS GREATER 12 SEPARATION BETWEEN BO...

Страница 17: ...brought into the furnace area from outdoors It is not directly ducted into the furnace A single properly sized pipe from the furnace vent connector to the outdoors must be provided For upflow models...

Страница 18: ...ed where the equipment has clearances of at least 1 inch from the sides and back and 6 inches from the front of the appli ance The opening shall communicate through a vertical or horizontal duct to th...

Страница 19: ...form to ASTM Stan dards D2564 PVC or D2235 ABS 5 The use of flexible connectors or no hub connectors in the vent system is not allowed NOTE If installing furnace at altitudes between 2000 4500 ft inta...

Страница 20: ...assembly procedure for the vent piping is as follows 1 Cut piping to the proper length beginning at the furnace 2 Deburr the piping inside and outside 3 Chamfer the outer edges of the piping 4 Dry fi...

Страница 21: ...in a downward position Be sure to maintain 12 clearance above any insulation flooring or other COMBUSTION AIR REQUIREMENTS The ventilated attic space from which the combustion air is taken must comply...

Страница 22: ...iece of flexible drain tubing such as EPDM rubber Vinyl or PVC to the nipple 5 Loop the drain tubing to provide a trap 6 Connect the discharge end of the drain tube to the con densate disposal system...

Страница 23: ...4 PVC or equiva lent pipe be field installed as drain pipe The condensate piping may be tied together with the air conditioning con densate drain if the air conditioning condensate drain line is trapp...

Страница 24: ...ration can continue Pressure Switches This furnace is supplied with pressure switches which monitor the flow through the combustion air vent piping system These switches de energize the ignition contr...

Страница 25: ...e to call for heat 3 System start up will occur as follows a The induced draft blower motor will start at high speed and wait for low pressure switch contacts to close then switch to low speed and the...

Страница 26: ...1 cubic foot dial to make a revolution with only a 120 000 Btuh furnace running Using this information locate 26 seconds in the first column of Read across to the column headed 1 Cubic Foot where you...

Страница 27: ...ndant P M solenoids as well as the HI terminal 4 Remove high adjustment seal screw to expose the 3 32 set screw Refer to Figure 36 5 To increase outlet pressure turn the 3 32 set screw clockwise To de...

Страница 28: ...may be the same speed or a different speed To use the same speed tap for heating and cooling the heat terminal and cool terminal must be connected using a jumper wire and connected to the desired mot...

Страница 29: ...Filter Rack 6 Pack 1BR0317 External Bottom or Horizontal Filter Rack Cabinet B 1BR0321 External Bottom Filter Rack Cabinet C 1BR0324 External Bottom or Horizontal Filter Rack Cabinet D 1NK0301 Condens...

Страница 30: ...cooling air flow for 60 seconds with a 15 second coast to stop ADJUSTMENT OF FAN OFF CONTROL SETTINGS This furnace is equipped with a time on time off heating fan control The fan on is fixed at 30 se...

Страница 31: ...1350 745 1555 830 1540 860 C B 885 505 1280 700 1430 785 1410 820 B C 655 450 1150 620 1310 740 1300 770 D B 870 460 1230 670 1400 770 1400 800 C A 610 445 1030 555 1220 665 1220 710 D A 715 450 1120...

Страница 32: ...t is satisfied the inducer motor is reduced to low speed and the 2nd stage gas valve is de energized to 1st stage The circulator remains on high heat speed for 30 seconds then de energizes to low heat...

Страница 33: ...LOW INDUCER LOW STAGE PRESSURE SWITCH HSI 1ST STAGE MAIN VALVE FLAME SENSE LOW CIRCULATOR HEAT SPEED 1ST STAGE LOW PRESSURE SWITCH CLOSE RECOGNITION HSI WARM UP 17 SEC IGNITION ACTIVATION PERIOD 4 SE...

Страница 34: ...be sure the filter completely covers the cabinet opening and is secured in place by the wire retainer LUBRICATION Blower and ventor motors in these furnaces are permanently lubricated and do not requi...

Страница 35: ...le shooting 1 Check to see that the power to the furnace and the igni tion control module is ON 2 The manual shutoff valves in the gas line to the furnace must be open 3 Make sure all wiring connectio...

Страница 36: ...100K ohms by connecting one meter lead to the motor lead and the other to an unpainted portion of the motor housing If any one of the leads fails this test THE MOTOR IS DEFECTIVE AND MUST BE REPLACED...

Страница 37: ...ndicate failure status Flash sequence codes 1 thru 4 are as follows LED will turn on for 1 4 second and off for 1 4 second This pattern will be repeated the number of times equal to the code For exam...

Страница 38: ...g the call for heat before locking out This may be caused by low gas pressure faulty gas valve faulty hot surface igniter reversed line polarity or burner problem 8 FLASH This fault is indicated if th...

Страница 39: ...LACED IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING OF AT LEAST 22 1 F 105 HAVING A TEMPERATURE RATING OF AT LEAST 221 C CONNECTIONS SUITABLE FOR COPPER CONDUCTORS ONLY ALL REPL...

Страница 40: ...T BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING OF AT LEAST 22 1 F 105 HAVING A TEMPERATURE RATING OF AT LEAST 221 C CONNECTIONS SUITABLE FOR COPPER CONDUCTORS ONLY ALL REPLACEMENT COMP...

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