NTI TRX II Series Replacement Instructions

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Tools required:

• Cordless drill/driver (NON-impact)

• ¼" square drive adapter

• ¼" hex bit / nut driver

• Socket wrench, ¼" drive

These instructions must only be used by a quali ed installer / service technician. Read all seven (7) steps of these instructions before

continuing. Perform steps in the given order. Failure to do so could result in property damage, severe personal injury, or death.

Improper installation, adjustment, alteration, service, or maintenance could void product warranty and cause property damage,

severe personal injury, or death.

TRX HX Stud Replacement Instructions

For TRX Series II boilers (models and S/Ns):

Part # 4270278 Kit Contents:

DANGER

WARNING

TRX150 Series II

S/Ns: 3314306C8[242830000177-250130000073)

TRX199 Series II

S/Ns: 3314307C8 (242740000006-250220000014)

TRX199C Series II

S/Ns: 3314308C8 (242750000127-250410000051)

Replacement studs (5 + 1 spare)

Torx E5 socket, ¼" square drive (1)

Loctite 648, 10 mL (1)

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Page 1 TRX HX Stud Replacement Instructions For TRX Series II boilers (models and S/Ns): ե TRX150 Series II S/Ns: 3314306C8[242830000177-250130000073) ե TRX199 Series II S/Ns: 3314307C8 (242740000006-250220000014) ե TRX199C Series II S/Ns: 3314308C8 (242750000127-250410000051) Part # 4270278 Kit Contents: ե Replacement studs (5 + 1 spare) ե...
Page 2 TRX HX Stud Replacement Instructions BEFORE YOU START — Disconnect the appliance from its power supply and close the gas shut-off valve to the unit STEP 1 — Access Burner Door Disconnect wiring: Spark Remove Junction cable Box Bracket Ground cables (¼”...
Page 3 TRX HX Stud Replacement Instructions WARNING Failure to tighten these and other fasteners to an appropriate or speci ed torque could result in property damage, gas leakage, re, explosion, serious personal injury, or death. STEP 4 — Install new studs Set the cordless drill/driver (do NOT Apply one to two drops of threadlock use an Impact Driver) to the highest...
Page 4 To obtain reimbursement for completing this Recall Repair procedure as instructed: Go to ntiboilers.com/trx-safety-recall and submit the Reimbursement Form. To supplement these instructions, NTI has created a video to guide viewers through these steps ‒ access the video from our TRX Recall Notice webpage: ntiboilers.com/trx-safety-recall...

Trx150 ii seriesTrx199 ii seriesTrx199c ii series3314306c83314307c83314308c8