Design for Condensing Systems. Brant Radiant Heaters HLV-170, HLV-80, HLV-50, HLV-90, HLV-140, HLV-60, HLV-100, HLV-175, HLV-75, HLV-180

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Design for Condensing Systems. Brant Radiant Heaters HLV-170, HLV-80, HLV-50, HLV-90, HLV-140, HLV-60, HLV-100, HLV-175, HLV-75, HLV-180 | Manualzz

HLV Series

3.0

Installation

Combustion Air Requirements

Combustion Air Requirements

This heater has a factory preset air orifice to provide adequate combustion air intake to the unit.

Non-contaminated outside air for combustion

must be ducted to the heater if any of the following apply:

• Chemicals such as chlorinated or fluorinated hydrocarbons are present in the space where the heater

is installed (typical sources are refrigerants, solvents, adhesives, degreasers, paints, paint removers,

lubricants, pesticides, etc.).

• Negative building pressure.

Indoor air supply: If using combustion air intake from indoors, the required volume of the space must be a minimum of 50 ft

3

per 1000 Btu/hr (4.8 m

3

/kW) unless the building is of unusually tight construction. If the building is of unusually tight construction with air infiltration rates of less than 0.40 air changes per hour, outside combustion air is typically needed unless the sheer size of the building allows otherwise.

Contact the factory for further determination of air infiltration rates.

Outside air supply: Outside combustion air may be supplied via an accessory air duct attached directly over the air orifice. A wall inlet cap (P/N: WIV) must be used with horizontal air intake ducts. It is recommended that the air intake pipe is connected to the heater with a 4 in. diameter flexible air inlet boot

(P/N: AIRH) to allow flexibility for expansion (Figure 3.20). Sidewall (horizontal) air intake is preferred.

Refer to Chart 3.3 for limitations on the length and size of air intake ducts.

• A maximum of two elbows is allowed in the vent.

• Keep air intake opening a minimum of 4 ft. from any exhaust vent openings. Always place vent stacks

higher than air intake openings.

• An air intake cap (P/N: WIV) must be installed to prevent blockages. Locate intake cap in an area

where dirt, steam, snow, etc. Will not contaminate or clog the intake screen.

• Insulated duct or PVC pipe should be used in humid applications to prevent condensation on the outer

surface of the intake pipe.

Figure 3.20 • Outside Combustion Air Supply

Air Intake Cap

Burner Control Box

Air Inlet Boot

Chart 3.3 • Combustion Air Intake Limitations

Duct Size

4 in. O.D.

5 in. O.D.

Maximum Length

30 ft.

45 ft.

6 in. O.D.

75 ft.

NOTE: A powered air inlet (P/N: V-PAI) can be used to bring in outside air for combustion for runs exceeding 20 ft. up to a 150 ft. maximum run.

33

3.0

Installation •

Electrical Requirements

Electrical Data

HLV Series

Electrical Requirements

!

WARNING

Electric Shock

Field wiring to the tube heater must be connected and grounded in accordance with national, state, provincial, local codes and to the guidelines in the Tube Heater General Manual and

Series Insert Manual. In the United States refer to the most current revisions to the ANSI/NFPA

70 Standard and in Canada refer to the most current revisions to the CSA C22.1 Part I Standard.

• An HLV Series vacuum system operates on 120V, 60 Hz. If an alternate voltage will be used, consult

the factory.

• The HLV Series vacuum system is designed to operate as a two-stage system unless it has been

factory configured to operate as a single-stage system (P/N: V-1SAO). Reference the appropriate field

and internal wiring diagrams (Figures 3.21-3.25) for the system being installed.

• Amperage draws for individual system components are indicated in Chart 3.4.

• The circuit(s) must be sufficient to handle the starting amperage of all burner control boxes and the

running amperage of the vacuum pump.

• Wiring from the power supply to the pump and control panel assembly must be 12 AWG or larger to

maintain proper voltage under full load conditions.

• The circuitry for the pre-wired pump and control panel assembly is suitable for up to a 20 amp circuit

maximum.

• Confirm the control panel assembly remains as wired from factory for proper fan rotation. Check

directional arrow on pump housing for proper wheel rotation (excludes NC-7 Series pump).

NOTE: Each vacuum pump is equipped with one control panel which is factory wired for up to two temperature zones (Figure 3.25, p.38).

Chart 3.4 • HLV Burner and Vacuum Pump Electrical Data

HLV Burner Box

Starting Circuit

0.7 amp

(per burner)

HLV Burner Box

Running Circuit

0.2 amp

(per burner)

HLV Pump

Model No.

NC-7

Running

Circuit

1.95 amps

PB-8

PB-9

PB-10A

7.4 amps

9.6 amps

11.6 amps

Voltage

115 VAC;

60Hz-1Ph

115/230 VAC;

60Hz-1Ph

115/208-230 VAC;

60Hz-1Ph

115/230 VAC;

60Hz-1Ph

RPM’s

3000

3450

3450

3450

HP

1/15

1/2

3/4

1

34 35

HLV Series

3.0

Installation

Electrical Requirements

Field Wiring

Wiring

Figure 3.21

• Two-Stage System Field Wiring Diagram

VACUUM PUMP

CONTROL BOX

(MOUNTED TO PUMP)

24V INPUT

FOR ZONE

#1

24V INPUT

FOR ZONE

#2

(IF USED)

N

L1

G

This shows additional wiring for systems that will operate on two temperature zones. NOTE: Do not exceed the total number of burners allowed per system as stated in Chart 2.3 on page 18.

N 1 2 N 1 2

24V Two Stage Controller

24V OUT - Stage 2

(High Fire)

24V OUT - Stage 1

(Low Fire)

24V IN

Common

External Transformer

(Field Supplied)

24V Two Stage Controller

24V OUT - Stage 2

(High Fire)

24V OUT - Stage 1

(Low Fire)

24V IN

Common

External Transformer

(Field Supplied)

A common wire is required for thermostats that require constant power.

A common wire is required for thermostats that require constant power.

Figure 3.22

• Single-Stage System Field Wiring Diagram (V-1SAO)

VACUUM PUMP

CONTROL BOX

(MOUNTED TO PUMP)

24V INPUT

FOR ZONE

#1

24V INPUT

FOR ZONE

#2

(IF USED)

N

L1

G

This shows additional wiring for systems that will operate on two temperature zones.

NOTE: Do not exceed the total number of burners allowed per system as stated in Chart 2.3 on page 18.

COM 24VAC COM 24VAC

COM 24VAC COM 24VAC

24V Digital

Thermostat

W

R

Common

External Transformer

(Field Supplied)

A common wire is required for thermostats that require constant power.

24V Two Stage Controller

W

R

Common

External Transformer

(Field Supplied)

A common wire is required for thermostats that require constant power.

35

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