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Page 16

Heating  Start−Up

FOR  YOUR  SAFETY  READ  BEFORE  LIGHTING

BEFORE  LIGHTING  smell  all  around  the  unit  area  for

gas.  Be  sure  to  smell  next  to  the  floor  because  some  gas

is  heavier  than  air  and  will  settle  on  the  floor.

Use  only  your  hand  to  push  in  or  turn  the  gas  control

knob.  Never  use  tools.  If  the  knob  will  not  push  in  or  turn

by  hand  do  not  try  to  repair  it.  Call  a  qualified  service

technician.  Force  or  attempted  repair  may  result  in  a

fire  or  explosion.

This  unit  is  equipped  with  an  automatic  spark  ignition

system.  There  is  no  pilot.  In  case  of  a  safety  shutdown,

move  thermostat  switch  to 

OFF 

and  return  the

thermostat  switch  to 

HEAT

  to  reset  the  ignition  control

.

WARNING

SMOKE  POTENTIAL

The  heat  exchanger  in  this  unit  could  be  a  source  of
smoke  on  initial  firing.  Take  precautions  with  re
spect  to  building  occupants  and  property.  Vent  ini
tial  supply  air  outside  when  possible.

 

WARNING

Danger  of  explosion.  Can  cause  injury
or  product  or  property  damage.  If
overheating  occurs  or  if  gas  supply
fails  to  shut  off,  shut  off  the  manual  gas
valve  to  the  unit  before  shutting  off
electrical  supply.

 

WARNING

Electric  shock  hazard.  Can  cause  injury
or  death.  Do  not  use  this  unit  if  any  part
has  been  under  water.  Immediately  call
a  qualified  service  technician  to  inspect
the  unit  and  to  replace  any  part  of  the
control  system  and  any  gas  control
which  has  been  under  water.

 

WARNING

Electric  shock  hazard.  Can  cause
injury  or  death.  Before  attempting  to
perform  any  service  or  maintenance,
turn  the  electrical  power  to  unit  OFF  at
disconnect  switch(es).  Unit  may  have
multiple  power  supplies.

 

WARNING

Danger  of  explosion  and  fire.  Can  cause
injury  or  product  or  property  damage.
You  must  follow  these  instructions
exactly.

A−Placing  Unit  In  Operation

Gas  Valve  Operation  for  White  Rodgers  36C  (figure

15),  White  Rodgers  36E  (figure  16),  Honeywell

VR8205M 

(figure 

17), 

and 

Honeywell

VR8205Q/VR8305Q  (figure  18)

FIGURE  15

WHITE  RODGERS  36C76  GAS  VALVE

D−1

GV−1

C−1

C2

GV−2

GAS  VALVE  SHOWN

IN  NOFF"  POSITION

MANIFOLD

PRESSURE

TAP

STAGE  2  MANUAL  MANIFOLD

PRESSURE  ADJUSTMENT

SCREW  UNDER  CAP

INLET

PRESSURE

TAP

WHITE  RODGERS  36E  GAS  VALVE

NO

OFF

Gas  valve  knob  is  shown

in 

OFF

  position.

FIGURE  16

MANIFOLD

PRESSURE

TAP  (SIDE)

INLET

PRESSURE

TAP  (SIDE)

Summary of Contents for Humiditrol L Series

Page 1: ...5 TON 504 417M 8 2001 Supersedes 4 2001 L SERIES PACKAGED UNITS Table of Contents DIMENSIONS 1 PARTS ARRANGEMENTS 2 SHIPPING AND PACKING LIST 3 GENERAL 3 UNIT SUPPORT 3 DUCT CONNECTION 4 CONDENSATE D...

Page 2: ...46 1 2 1181 EXHAUST AIR OUTDOOR AIR 15 381 END VIEW Economizer Outdoor Air Dampers CONDENSATE DRAIN EVAPORATOR COIL BLOWER 45 1143 5 1 8 130 24 3 4 629 FILTERS OPTIONAL OUTDOOR AIR HOOD Factory or Fi...

Page 3: ...TRIC HEAT OPTIONAL CONDENSER FAN HEAT EXCHANGER COMPRESSOR EVAPORATOR COIL BLOWER TB1 COMBUSTION AIR INDUCER GAS VALVE BURNERS FILTERS DISCONNECT OPTIONAL ECONOMIZER OPTIONAL 120V GFI OUTLET OPTIONAL...

Page 4: ...rty damage Turn off gas and electrical power to unit before performing any maintenance or servicing operations on the unit Follow lighting instructions attached to unit when putting unit back into ope...

Page 5: ...our sides of unit base Supports must be constructed of steel or suitably treated wood materials NOTE Securely fasten roof frame to roof per local codes Duct Connection All exterior ducts joints openin...

Page 6: ...provided upstream of gas supply connection to the unit Install a ground joint union between the gas control manifold and the main manual shut off valve See figure 6 Compounds used on threaded joints o...

Page 7: ...ve filters from unit and slide into filter channels If the filters have a metal frame remove the cardboard shipping pad protecting the evaporator coil B Intake Hood The intake hood top panel is secure...

Page 8: ...rmostat where it might be affected by drafts or dead spots behind doors and in corners hot or cold air from ducts radiant heat from sun or units concealed pipes and chimneys B Control Wiring 1 Route t...

Page 9: ...HERMOSTAT HAS NO NIGHT SETBACK TERMINALS 19 20 21 VOUT GND VIN A91 HUMIDITY SENSOR Connect shield drain to unit TB1 7 1 2 18 FIGURE 12 24 VOLT FIELD WIRING IN ZONE SENSOR MODE ECTO 6 01 OPTION 1 2 OR...

Page 10: ...the static pressure and RPM readings to determine unit CFM 6 The CFM can be adjusted at the motor pulley see section C Blower Belt Adjustment C Blower Belt Adjustment Maximum life and wear can be obt...

Page 11: ...85 1 20 0 90 1250 1 40 1 04 1800 850 630 0 50 0 37 730 0 55 0 41 820 0 65 0 48 905 0 75 0 56 985 0 85 0 63 1060 1 00 0 75 1130 1 10 0 82 1200 1 30 0 97 1265 1 45 1 08 1900 895 665 0 55 0 41 760 0 65 0...

Page 12: ...1 01 1255 1 50 1 12 1900 899 565 0 35 0 26 665 0 45 0 34 755 0 55 0 41 840 0 65 0 48 920 0 80 0 60 995 0 90 0 67 1065 1 05 0 78 1135 1 25 0 93 1200 1 40 1 04 1265 1 60 1 19 2000 945 595 0 40 0 30 690...

Page 13: ...21 0 12 31 0 12 30 0 04 10 1600 755 0 05 13 0 10 26 0 15 38 0 16 40 0 04 10 1800 850 0 06 16 0 12 31 0 18 46 0 21 52 0 05 12 2000 945 0 07 18 0 14 36 0 21 53 0 25 62 0 05 12 2200 1040 0 09 21 0 17 42...

Page 14: ...ased on terminal velocities of 75 ft 22 9 m per minute TABLE 9 FD11 95 CEILING DIFFUSER AIR RESISTANCE Air Volume Effective Throw cfm L s ft m 2600 1225 19 24 6 7 2800 1320 20 28 6 9 3000 1415 21 29 6...

Page 15: ...and blower rotation must match rotation marking If pressure differential is not observed or blower rotation is not correct 3 Disconnect all remote electrical power supplies 4 Reverse any two field in...

Page 16: ...4_F 1 7 7_C 1 LGA LCA048H Humiditrol Units 16_F 1 9_C 1 LGA LCA060H Humiditrol Units 15_F 1 8 3_C 1 F Compressor Controls 1 High Pressure Switch S4 The compressor circuit is protected by a reset high...

Page 17: ...off shut off the manual gas valve to the unit before shutting off electrical supply WARNING Electric shock hazard Can cause injury or death Do not use this unit if any part has been under water Immedi...

Page 18: ...gas valve counterclockwise to NON Do not force 36E Turn the knob 180 either way to HON 8 Close or replace the heat section access panel 9 Turn on all electrical power to appliance 10 Set thermostat to...

Page 19: ...the blower transition in both standard and high heat units C Heating Adjustment 1 Main burners are factory adjusted for proper flame Air shutters are provided for localized areas if necessary 2 Burne...

Page 20: ...orator coil is cooled and dehumidified the reheat coil adds heat to supply air See figure 19 for reheat refrigerant routing and figure 20 for standard cooling refrigerant routing REHEAT MODE REFRIGERA...

Page 21: ...clean and free of obstructions and debris Read Relative Humidity At IMC Turn MODE DIP HTEMP switch 4 HON Display will alternately flash from readout to output A single push on the pushbutton will tog...

Page 22: ...s initiated Compressor does not de energize L14 reheat valve is de energized for compressor cooling 3 Compressor reheat is in operation and outdoor air is suitable for free cooling then reheat demand...

Page 23: ...el should be checked and cleaned prior to the heating season However it should be examined periodically during the heating season to establish an ideal cleaning schedule With power supply disconnected...

Page 24: ...debris may become trapped between the slabs To clean between slabs carefully separate coil slabs and wash them thoroughly See figure 24 G Supply Air Blower Wheel Annually inspect supply air blower wh...

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