background image

30

RP-HRPD-IOM (07-22) 132210-B

Post-Startup Checklist

 

‰

Observe burner flame at full fire . Natural gas flame should be about 1-1/2 inches in height with blue coloring . 

Propane gas flame should be approximately same height with blue coloring . Yellow tipping may appear on propane 

gas . If yellow extends beyond 1/2- to 3/4-inch, adjust air shutters (refer to 

Burner Air Shutter Adjustment

 

section) . If shutter adjustment does not reduce yellowing, check for gas leaks at control manifold or orifice fitting .

 

‰

Turn unit OFF and ON, pausing 2 minutes between each cycle . Observe to verify smooth ignition . On two-stage or 

modulating burner systems, manipulate temperature adjustment slowly up and down to see if control is sequencing 

or modulating properly . Raising temperature setting drives burner on or to full fire .

 

‰

Using manometer or slant gauge readable up to 14 IN WC, check orifice manifold for operating pressure on full 

fire . Natural gas should be 3 .5 IN WC at this point . Propane gas should be 10 IN WC at this point . Variations 

from these pressures are not recommended as ignition and efficiency performance can be adversely affected by 

improper pressure adjustment (refer to 

Measure and Adjust Manifold (Outlet) Gas Pressure

 section) .

 

‰

Place owner’s envelope containing Limited Warranty Card, this manual, and any optional information in accessible 

location near heater . Follow instructions on envelope .

⚠ DANGER ⚠

 

• The gas burner in this gas-fired equipment is designed and equipped to provide safe, controlled, 

complete combustion. However, if the installation does not permit the burner to receive the 

proper supply of combustion air, complete combustion may not occur. The result is incomplete 

combustion, which produces carbon monoxide, a poisonous gas that can cause death.

 

• Safe operation of indirect-fired gas burning equipment requires a properly-operating vent system 

that vents all flue products to the outside atmosphere. FAILURE TO PROVIDE PROPER VENTING 

WILL RESULT IN A HEALTH HAZARD THAT COULD CAUSE SERIOUS PERSONAL INJURY OR 

DEATH.

 

• Always comply with the combustion air requirements in the installation codes and instructions.

 

• Combustion air at the burner should be regulated only by manufacturer-provided equipment. 

NEVER RESTRICT OR OTHERWISE ALTER THE SUPPLY OF COMBUSTION AIR TO ANY HEATER.

OPERATION—CONTINUED

Startup

1 .  Close all panels tightly .
2 .  Turn ON electric and gas supply to furnace .
3 .  Adjust thermostat or ductstat so that call for heat exists .
4 .  Observe for complete sequencing of safety pilot and ignition (refer to 

Table 19

) .

Table 19.  Sequence of Operation

Step

Action

Observe

1

Set thermostat at its lowest setting

2

Turn ON electric and main 

and manual gas valves

Firing rate is controlled by thermostat
Blower motor operates from fan time delay

3

Set thermostat at desired 

setting—thermostat calls for 

heat

Venter motor is energized after 15-second (approximate) time delay
Venter flow switches from NC to NO contacts to energize pilot gas valve and spark gap to produce 

pilot flame on each operating cycle
Sensing probe proves presence of pilot flame and energizes safety switch portion of control to 

deenergize spark gap and energize main valve
Main gas ignites and unit fires at full rate

4

If flame is extinguished during 

main burner operation, safety 

switch closes main valve and 

recycles spark gap

On unit equipped with controller with lockout, if pilot is not established within 120 seconds 

(approximately), unit locks out for 1 hour unless reset by interrupting power to control circuit

Содержание HRPD

Страница 1: ...agency or the gas supplier Be sure to read and understand the installation operation and service instructions in this manual Do not store or use gasoline or other flammable vapors and liquids in the...

Страница 2: ...Piping Connections 19 Electrical Connections 21 Control Wiring 21 CONTROLS 22 Thermostat 22 Fan Control 22 Limit Control 22 Combination Gas Valve 22 Combustion Air Proving Switch 23 Optional Two Stag...

Страница 3: ...g rate and electrical requirements are shown on the unit s rating plate Model HRPD is dual model RP furnaces configured for higher CFM capacity References TABLE OF CONTENTS CONTINUED OPERATION 29 Pre...

Страница 4: ...thoroughly before installing or servicing this equipment WARNING For your safety read the warning labels on the unit CAUTION These duct furnaces are not certified or approved for use in drying or proc...

Страница 5: ...spark ignition flame sensing probe b Wiring is not in accordance with the diagram furnished with the heater c Unit is installed without proper clearance to combustible materials or without proper ven...

Страница 6: ...Figure 1 Unit Size 125 150 175 200 225 250 300 350 400 Inches 1 8 mm 3 A 30 15 16 786 36 7 16 914 41 15 16 1065 50 3 16 1275 55 11 16 1414 61 3 16 1554 B 28 1 2 648 34 864 39 1 2 1003 47 3 4 1213 53 1...

Страница 7: ...provided Table 4 Weights Model RP Unit Size 125 150 175 200 225 250 300 350 400 HRPD Unit Size 250 300 350 400 500 600 700 800 Pounds kg RP 201 91 217 98 247 112 295 134 333 151 361 164 HRPD 402 182 4...

Страница 8: ...s Check to see if there are any field installed options that need to be connected to the furnace prior to installation Shipped separate options could include a gas shutoff valve a vertical vent termin...

Страница 9: ...cy performing this work assumes responsibility for the conversion of this appliance to provide for higher CFM Theseinstructionsaredesignedtopreparetheductfurnaceforincreasedairthroughputconversion pri...

Страница 10: ...ffle b Remove both side finger baffles Figure 4 Side Finger Baffle Removal 3 Install field conversion label see Figure 5 a Fill in field conversion label PN 263310 from literature bag b Adhere label t...

Страница 11: ...ket assembly on opposite end of heat exchanger and secure using field supplied sheet metal screws 4 Reinstall airflow baffles removed in step 1 and secure using existing screws Figure 6 Airflow Baffle...

Страница 12: ...1 inch is recommended of insulation Supports suspend all ducts securely from buildings members Do not support ducts from unit duct connections Access panels Install removable access panels see Figure...

Страница 13: ...ischarge sensor is field supplied Follow the instructions below to install the sensor in the ductwork 1 Determine distance of sensor from unit a Ensure that there is sufficient distance from outlet to...

Страница 14: ...nse air temperature as it flows through holes in holder 3 At selected ductwork location mark diamond shaped hole approximately 1 1 inch 25 25 mm required for sensor holder or round hole required for m...

Страница 15: ...40 3070 0 28 2630 0 23 2300 0 22 2045 0 21 300 4420 0 58 3685 0 39 3160 0 29 2765 0 25 2455 0 22 350 5160 0 65 4300 0 44 3685 0 31 3225 0 25 2865 0 23 400 5895 0 70 4915 0 50 4210 0 30 3685 0 30 3275...

Страница 16: ...Duct Furnace Blower Connections Bypass Duct Construction When the air throughput CFM is greater than desirable or permissible for the unit a bypass duct see Figure 11 may be constructed Locate the byp...

Страница 17: ...110 3290 9 229 1700 2100 2400 2700 2970 3200 3400 3600 3800 10 254 1920 2350 2760 3090 3650 4020 4300 4550 4800 See Figure 11 NOTE Not all capacities are covered above If your installation is not cove...

Страница 18: ...ater Gas Supply Piping DANGER All components of a gas supply system must be leak tested prior to placing equipment in service NEVER TEST FOR LEAKS WITH AN OPEN FLAME Failure to comply could result in...

Страница 19: ...ne Gas Natural Gas Propane Gas Cubic Feet per Hour 20 92 56 190 116 350 214 730 445 1100 671 2100 1281 30 73 45 152 93 285 174 590 360 890 543 1650 1007 40 63 38 130 79 245 149 500 305 760 464 1450 88...

Страница 20: ...ued Figure 13 Gas Connections Table 13 Gas Connection Sizes Gas Type RP Unit Size 125 250 300 400 HRPD Unit Size 250 500 600 800 Connection Size Inches mm Natural gas 1 2 13 3 4 19 Propane 1 2 13 NOTE...

Страница 21: ...y with fused disconnect switch should be run directly from the main electrical panel to the unit making connections in the junction box Disconnect switch A disconnect switch is a required part of this...

Страница 22: ...t Use either an optional thermostat available with the system or a field supplied thermostat Install according to the thermostat manufacturer s instructions Fan Control NOTE To replace the fan control...

Страница 23: ...odels HRPD Models Units Without Option AG39 AG40 AG41 or AG42 All 0 58 0 05 IN WC 1 05 IN WC 0 73 IN WC Units with Option AG39 AG40 AG41 or AG42 125 225 250 400 0 58 0 05 IN WC 1 30 0 20 IN WC 1 05 0...

Страница 24: ...es 64 F low stage furnace 2 68 F shutdown furnace 2 70 F low stage furnace 1 74 F shutdown furnace 1 AG4 HRPD 2 70 F 66 F full rate both furnaces 70 F shutdown furnace 1 74 F shutdown furnace 2 AG15 R...

Страница 25: ...n the heater rating plate AG7 is identified as MV 1 AG8 is identified as MV 3 AG9 is identified as MV 4 AG21 is identified as MV A AG39 is identified as MP 1 and AG40 is identified as MP 2 AG39 and AG...

Страница 26: ...ual to or greater than the thermal efficiency at full fire The gas train see Figure 16 includes a single stage gas valve a modulating valve and two gas pressure switches The burner rack is equipped wi...

Страница 27: ...gear motor Replace primary manifold pressure switch YES NO YES NO YES NO YES NO YES NO NO YES YES NO Measure manifold pressure during burner cycling When the manifold pressure is BELOW 1 0 w c is the...

Страница 28: ...is available only with model HRPD natural gas units and is not available on unit size 700 Depending on its size a furnace equipped with option AG40 or AG42 has a 20 28 turndown ratio With option AG40...

Страница 29: ...trolled flame stability without lifting or flashback with either natural or propane gas All burners are lightweight and are factory mounted in an assembly that permits all of the burners to be removed...

Страница 30: ...The result is incomplete combustion which produces carbon monoxide a poisonous gas that can cause death Safe operation of indirect fired gas burning equipment requires a properly operating vent syste...

Страница 31: ...when the heater is in operation and when it is on standby Incorrect inlet pressure could cause excessive manifold gas pressure immediately or at some future time NOTE A manometer fluid filled gauge i...

Страница 32: ...turn using wrench DANGER DO NOT use an open flame to check for gas leaks Table 20 High Elevation Burner Orifices Installation Elevation Feet Meters Installation Location RP Unit Size Natural Gas Propa...

Страница 33: ...rclockwise to close the air shutter After the furnace has been in operation for 15 minutes close the air shutter until the flame turns yellow Open the shutter until yellow disappears Adjust Heat Stage...

Страница 34: ...ion and clean as necessary Clean all dirt and grease from primary and secondary combustion air openings Power vent Check flue products outlet and clean as necessary Gravity vent Check vent cap or opti...

Страница 35: ...connect electric valve leads e Uncouple union in gas supply f Remove sheet metal screws in top corners of burner rack assembly g Pull drawer type burner rack out of furnace 2 Disassemble burner rack N...

Страница 36: ...l sensing probe and the pilot hood with an emery cloth and wipe off the ceramic insulator 4 Check the spark gap see Figure 20 which should be maintained to 7 64 inch Figure 20 Pilot Assembly Spark Gap...

Страница 37: ...a If voltage between black and brown leads on main gas valve is 20 32 VAC and there is no main gas flow with built in manual valve in FULL OPEN position main valve is defective b If there is no voltag...

Страница 38: ...ner Rack Maintenance section b Remove heat exchanger V baffles see Figure 22 1 Remove ends of flue gas collection box 2 On control side of furnace remove venter assembly and flue outlet duct to gain a...

Страница 39: ...l lockout device interrupting control circuit due to above causes Reset lockout by interrupting control at thermostat 9 Faulty combustion air proving switch Replace combustion air proving switch C Pil...

Страница 40: ...__________ Address ________________________________________________________ ________________________________________________________ Phone ________________________________________________________ Mode...

Отзывы: