Adp LF25 Series Installation Instructions Manual Download Page 20

Page: 20 / 27

Page 20

0 2

0 3

0 4

0 5

0 6

0 7

0 8

0 1

A A

B B

C C

D D

E E

F F

CUT S IZE

7 .5

7 .7 5

Voltage:

120/60/1

Model:

LF25 Unit Heater; LS25 Separated Combustion Unit Heater

Supersedes:

538025-01

Form No:

Heat Input - 125k-200k BTUH

REV EC NO.

DATE

APVD

REVISION NOTE

---

CN-008462

04/27/2020

JDH25

EMP

ORIGINATED AT PD&R CARROLLTON, TX

001 CN-008216E

06/05/2020

JDH25

EMP

SUPERSEDES WAS N/A

002 CN-009314E

04/30/2021

JDH25

EMP

CORRECTED PIN DESCRIPTION, J373 WAS P373

Rev:

2.0

R
C

D-

ound

G
W1
W2

L 1

BL K

WHT

T-

I-

XFMR- COM

XFMR- 24VAC

XFMR- N

XFMR- L 1

BL K

WHT

BL U

YEL

-0

D-

ound

GND- BOARD

GRN- YEL

-N

-G

-L

-N

-G

-L

N-

COM

WHT

195

-C

-H

195

-M

5 3 8 0 2 5 -0 2

L OW VOL TAGE THERMOSTAT CONNECTI ONS

HEAT ( W1)

BL OWER ( G)

24V POWER ( R)

24V COMMON ( C)

1
3

5
6

C-

-O

L 1

GND

C
G

W1
W2

I GN CTRL

-O

C-

FI EL D PROVI DED

CL ASS I I 24VAC

THERMOSTAT WI RI NG

L 1

FI EL D PROVI DED POWER WI RI NG.

CONNECT TO P366 AND GREEN GROUND

SCREW L OCATED I NSI DE UNI T.

366

HI GH VOL TAGE POWER CONNECTI ONS

P365 AND P364

ARE ENERGI ZED

SI MUL TANEOUSL Y

GND WI RE

ATTACHED TO

XFMR MOUNTI NG

SCREW

J 374
P374

TEST

J 373

P364

P365

6 12

366

P368

J 368

C-

-O

Summary of Contents for LF25 Series

Page 1: ...ble Of Contents WARNING Improper installation adjustment alteration service or maintenance can cause property damage personal injury or loss of life Installation and service must be performed by a licensed professional installer or equivalent service agency or the gas supplier CAUTION As with any mechanical equipment personal injury can result from contact with sharp sheet metal edges Be careful w...

Page 2: ...d Shipping and Packing List UNIT HEATER BAG ASSEMBLY REMOVE BRACKETS SECURING UNIT TO SHIPPING CRATE BEFORE INSTALLATION FLUE TRANSITION BURNER BOX HOOD 125 400 Units Package 1 of 1 contains 1 Unit Heater 1 Burner box hood 1 Rectangular to round flue transition 4 diameter on 125 150 factory installed 5 diameter on 175 300 provided and field installed 6 diameter on 350 400 provided and field instal...

Page 3: ...ANGER AIR FLOW MOUNTING SLOTS Typical 5 16 x 3 Inches 8 x 76 mm HANGING BRACKETS 2 SERVICE ACCESS PANEL SIDE VIEW ADJUSTABLE LOUVERS 1 25 LF25 030 105 DIMENSIONS Inches mm THERMOSTAT INLET Model No A B C D in mm in mm in mm in mm LF25 030A LF25 045A 12 3 8 314 6 1 2 165 4 102 6 152 LF25 060A LF25 075A 17 1 2 445 6 1 4 159 6 1 8 156 3 5 8 92 LF25 090A LF25 105A 23 584 7 7 8 200 9 1 8 232 3 5 8 92 ...

Page 4: ...Page 4 ...

Page 5: ...NLETS FLUE OUTLET TOP VIEW 4 3 8 16 MOUNTING NUTS FOR UNIT SUSPENSION 16 406 1 2 13 5 3 8 137 B 1 2 13 31 7 8 810 10 5 8 270 35 1 4 895 10 1 2 267 2 1 2 64 3 1 8 79 LF25 125 200 DIMENSIONS Inches mm Model No A B C D in mm in mm in mm in mm LF25 125 LF25 150 19 1 2 495 18 1 2 470 12 1 4 311 4 3 4 121 LF25 175 LF25 200 25 635 23 3 4 603 9 1 2 241 3 76 ...

Page 6: ...LOW SIDE VIEW COMBUSTION AIR INDUCER DIRECT DRIVE FAN GAS VALVE HEAT EXCHANGER 16 406 1 2 13 31 7 8 810 10 5 8 270 5 3 8 137 10 1 2 267 1 2 13 35 1 4 895 3 76 2 5 8 67 3 1 8 79 LF25 250 400 DIMENSIONS Inches mm Model No A B C in mm in mm in mm LF25 250 LF25 300 37 5 8 956 36 1 2 927 15 7 8 403 LF25 350 LF25 400 47 1194 45 3 4 1162 20 1 2 521 ...

Page 7: ...Page 7 ...

Page 8: ... jurisdiction should be consulted before installation The installation must conform with local building codes or in the absence of local codes with the current edition of CSA B149 installation compliance codes All electrical wir ing and grounding for the unit must also comply with the current edition of CSA C22 1 Canadian Electrical Code These unit heaters are CSA certified for the installation cl...

Page 9: ...52 LF25 125 400 UNITS Four mounting nuts are furnished Refer to dimension illustration Mounting nuts will accommodate 3 8 x 16 threaded rods CAUTION Do not install unit heaters in close proximity to fire sprinklers Unit heater normal operating temperatures could result in fire sprinkler activation 1 Push each louver to the left to depress spring and release locking tab on the other end locking tab...

Page 10: ...Page 10 FIGURE 2 FIGURE 3 ...

Page 11: ...5 SHOWN FIGURE 4 RotationofCombustionAirInducer LF25 125 150Only The combustion air inducer on LF25 125 150 may be rotated 90 either to the left or right of the original vertical position in order to better suit the application NOTE It is not permissible to rotate the combustion air inducer on LF25 030 105 and 175 400 Rotate the combustion air inducer assembly as follows 1 Remove the heater from t...

Page 12: ...75 400 Units A sheet metal transition is supplied with this certified unit It must not be modified or al tered and must be installed on the outlet of the com bustion air inducer assembly prior to the installation of the vent connector Failure to comply with this re quirement will void the certification of the unit by the approval agencies Note Different manufacturers have different joint systems a...

Page 13: ...e wall metal pipe may be used as a vent connector between the unit heater and the vertical gas vent in all applications however single wall metal pipe cannot be used for vertical gas vent in residential applications 3 Keep the vent connector runs as short as possible with a minimum number of elbows Refer to the current edition of ANSI Z223 1 or CSA B149 installation compliance codes for maximum ve...

Page 14: ...ermination from direct winds 5 Vent terminations must be free from obstructions and at least 12 305mm above grade level and maximum snow height 6 Do not install a horizontal vent termination directly below roof eaves or above a public walkway or any other area where condensate dripping may be troublesome and may cause some staining Avoid windows where steam may cause fogging or ice buildup 7 Minim...

Page 15: ...MMON VENTING NOT ALLOWED WHEN HORIZONTALLY VENTING THE UNIT HEATER COMBUSTION AIR INDUCER Category III adaptor must be installed before optional elbow if used LISTED WALL THIMBLE THROUGH COMBUSTIBLE WALL NOTE Minimum horizontal vent length is 5 ft This does not include termination tee Refer to table 4 for maximum length and number of elbows VENT TERMINATION TEE DRAIN TEE DRAIN LOOP PROVIDED BY INS...

Page 16: ...he roof surface with a listed cap or a listed roof assembly in accordance with the terms of their respective listings and the vent manufacturer s instructions 4 Do not install a manual damper barometric draft regulator or flue restrictor between the unit heater and the chimney 5 If type B1 double wall vent is used inside a chimney no other appliance can be vented into the chimney Outer wall of typ...

Page 17: ...ch appliance remaining connected to the common venting system properly vents when tested as outlined above return doors windows exhaust fans fireplace dampers and any other gas burning appliance to their previous condition of use 7 If improper venting is observed during any of the above tests the common venting system must be corrected The common venting system should be resized to approach the mi...

Page 18: ...own in figure 11 On 030 105 units use pigtails provided in power entry box On 125 400 units connect wires to 2 pin P366 plug located on the A3 ignition control board For ease of installation disconnect P366 plug from J366 make wire connections and replace P366 Refer to wiring diagram on unit and the appropriate typical diagram in this manual HIGH VOLTAGE WIRING A3 IGNITION CONTROL L1 N GND FIELD P...

Page 19: ... L AM E S E NS NO COM 8 S 47 7 S 195 9 S 10 5 S 18 11 GV C 12 GV H 2 S 47 1 S 195 3 S 10 4 S 18 6 GV M COM M GRY W HT W HT W HT W HT W HT BL U BL U PNK BRN 537992 02 1 0 537992 02 LOW VOLTAGE THERM OSTAT CONNECTI ONS P367 J 367 HEAT W 1 BLOW ER G 24V POW ER R 24V COM M ON C J 363 2 1 3 5 6 24VAC I N R OUT L1 N GND C G W 1 W 2 1 4 A3 I GN CTRL OUT 24VAC I N 1 FI ELD PROVI DED CLASS I I 24VAC THERM ...

Page 20: ...8 F AN1 L 1 2 F AN2 N 5 F AN2 GND 8 F AN2 L 1 GRN YE L W HT BL K F L AM E S E NS NO COM W HT 8 S 47 7 S 195 9 S 10 5 S 18 11 GV C 12 GV H 2 S 47 1 S 195 3 S 10 4 S 18 6 GV M COM M BL U BL U PNK BRN 538025 02 2 0 538025 02 LOW VOLTAGE THERM OSTAT CONNECTI ONS P367 J 367 HEAT W 1 BLOW ER G 24V POW ER R 24V COM M ON C J 363 1 3 5 6 24VAC I N R OUT L1 N GND C G W 1 W 2 1 4 A3 I GN CTRL OUT 24VAC I N 1...

Page 21: ... AN1 GND 8 F AN1 L 1 BRN 2 F AN2 N 5 F AN2 GND 8 F AN2 L 1 GRN YE L W HT BL K W HT GRN YE L BL K F L AM E S E NS NO COM 8 S 47 7 S 195 9 S 10 5 S 18 11 GV C 12 GV H 2 S 47 1 S 195 3 S 10 4 S 18 6 GV M COM M BLU BLU BL U PNK BRN 538024 02 2 0 538024 02 LOW VOLTAGE THERM OSTAT CONNECTI ONS P367 J 367 HEAT W 2 HEAT W 1 BLOW ER G 24V POW ER R 24V COM M ON C J 363 1 3 5 6 24VAC I N R OUT L1 N GND C G W...

Page 22: ... a manual main shutoff valve and union furnished by installer be installed external to the unit Union must be of the ground joint type A drip leg should be readily accessible to per mit cleaning and emptying See figure 12 NOTE If a switch box is mounted over electrical knock outs on back of unit leave a minimum of 4 102mm clearance between switch box and drip leg A 1 8 NPT plugged tap shall be ins...

Page 23: ...n the building there may be smoke on start up WARNING Danger of explosion Can cause injury or product or property damage You must follow these instructions exactly BEFORE LIGHTING smell all around the appliance 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 move the switch Never use tools If the switch will no...

Page 24: ...he ignition sensor proves the flame and the combustion process continues 5 In the event that the flame is not detected after the first 10 second trial for ignition the controller will repeat steps 3 and 4 an additional two times before locking out the gas valve Ignition control will then automatically repeat steps 3 4 and 5 after 60 minutes NOTE To interrupt the 60 minute lockout period move therm...

Page 25: ...ed by four percent per 1000 feet for in stallation above 2000 feet The de rate may be accom plished by adjusting the manifold pressure Refer to table 7 for natural gas manifold pressures and the Engineering Handbook for high altitude kit part numbers TABLE 7 US NATURAL GAS MANIFOLD PRESSURES inch w g kPa LF25 MODEL Altitude in Feet Meters 0 2000 0 610 2001 3000 610 914 3001 4000 915 1219 4001 5000...

Page 26: ...tions see the Engineering Handbook For White Rodgers 36H valve Figure 13 supply pressure is accessed by removing 1 8 hex screw Remove the 1 8 hex screw and install a 1 8 fitting with hose barb Connect tubing from the barbed fitting and route to measuring device to measure supply pressure 3 Open manual main supply valve 4 Ignite unit and let run for 5 minutes to allow for steady state conditions 5 ...

Page 27: ...ns Tight START UP AND PERFORMANCE CHECKLIST Job No City City Serial No Date State Province Service Technician Air Shutters Properly Adjusted If Installed Flue Connections Tight THERMOSTAT Calibrated Heat Anticipator Properly Set Level Manifold Pressure Blower Motor Amps Blower Motor Lubrication O K Gas Piping Connections Tight Leak Tested State Province Fan Timer Operation Checked w c Job Name Job...

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