Unit installation

IM 1021 - Ke y-Lock Access Door Kit

The key-lock access door kit can be installed on ThinLine 3G

cabinet units to prevent access to unit controls. It is installed as

follows.

1 Locate all components and remove from carton. Kit

includes:

• Tamperproof control door

• 2 hinge pins

• Locking mechanism

• Locking mechanism keys

2 Open the control door on the fan coil. Then unscrew the

two attaching screws and remove the door from the unit.

See Figure 1. Save screws for reattachment!

Figure 1: Remove Control Door From Unit

Remove the hinge pins from the old control door by

either re-rounding the flattened pin ends with a needle-

nose pliers or drilling out the pins with a 5/32” drill bit.

Then separate the door from the hinge bracket.

Figure 2: Remove Old Door from Bracket

Attach the locking mechanism to the tamper-proof

control door. See Figure 3.

5 Attach the new tamperproof control door to the hinge

bracket using new hinge pins. See Figure 3. Secure the

hinge pins to the bracket by pinching protruding ends

with a needle-nose pliers.

Figure 3: Attach Bracket and Lock to New Door

Install the new door and locking mechanism on the unit

using the screws removed in Step 2.

Installation and Maintenance Manual IM 1021

Key-Lock Access Door for

ThinLine™ 3G Vertical Fan Coils

Group: Applied Air Systems

Part Number: 668115705

Date: August 2009

Unscrew attaching screws and

remove control door from unit.

Remove hinge pins from old control door and

separate door from hinge bracket.

Attach tamperproof control door to hinge bracket

with new hinge pins.

Attach locking mechanism to tamperproof

control door.