Titus VHC User Manual

VERTICAL HIGH OUTPUT VHC-IOM-00 01-19-09

INSTALLATION AND
MAINTENANCE INSTRUCTIONS

VHC

INSTALLER MUST BE A TRAINED, EXPERIENCED SERVICE

TECHNICIAN

1. PRESSURE CHECK

When the valve package is factory installed, the unit is shipped with the coil and

associated piping/valve package pressurized. Use the air valve to release the pressure.
Should there be no pressure, inspect the unit for possible shipping damage. The unit
must be pressure tested again prior to installation.

2.

This unit is free standing. It MUST be leveled when installed. When leveling legs

3.

3.1 All piping leading to the unit must be adequately supported to prevent excessive stress

3.2 Threaded connections must not be over tightened.

3.3 Sweat connections must not be overheated. Use solder (95/5) with a melting

3.4 When the valve package is supplied separately for field installation, carefully follow

MOUNTING

are supplied (optional), these are located under the unit’s bottom panel. Turn the bolts

as required until the unit is perfectly leveled to ensure proper condensate drainage.

PIPING

on the unit’s piping. However, sufficient free movement is required for thermal

expansion/contraction.

o

temperature below 600

the schematic piping diagram and installation instructions provided with the package.

F.

3.5 The inlet (supply), outlet (return) and condensate (drain) points are clearly marked on
the unit’s piping. Depending upon the filed piping layout, the connecting inlet, outlet
and condensate piping could be at the right or left side of the unit. Follow the
Engineer’s pipe layout drawing while routing the supply, return and drain lines to and
from the unit.

3.6 All pipes and fittings outside the unit’s enclosure must be properly insulated as no
external condensate pan is provided with the standard unit.

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VERTICAL HIGH OUTPUT VHC-IOM-00 01-19-09

INSTALLATION AND
MAINTENANCE INSTRUCTIONS

4. ELECTRICAL

4.1 All electrical connections are to be made in accordance with the National Electric

Code, state and local codes, bylaws, ordinances or the authority having jurisdiction.

Make all electrical connections inside the internal electric junction box by carefully

following the wiring diagram.

4.2 Electrical wiring diagram is located inside the unit’s enclosure. Adhere strictly to it in

order to avoid damage and/or personal injury.

4.3 When the thermostat and fan switch are field supplied, the following are the minimum

electrical ratings:

- Thermostat (valve load) = 0.1A @ 115V
(0.05A @ 230V)

- Fan Motor(s) @ full load amps, FLA (@115V):

SIZE FLA (Amps)

06 3.5
08 3.5
10 3.7

12 4.0
14* 3.5
16* 3.5
18* 3.5
20* 4.0

*Note: Units are equipped with two (2) motors; full load amperage listed is per motor.

4.4 Where electric heating is provided with the unit (optional), an external HEAT/COOL
changeover switch has to be installed – normally wall mounted together with the fan
speed selector switch. At minimum, this switch should be rated: 10A @ 115V (5A @
230V).

4.5 Follow the wiring diagram for correct installation.

5.

GENERAL PRECAUTIONS

After completing the installation, recheck the following:

5.1 The drain pans, fans and motors are clean of all foreign material.

5.2 All electric wiring is properly routed, secure and capped.

5.3 The filter is clean and secured in its position.

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