Ambirad VPlus40 User manual

WARNING: Improper installation, adjustment,

alteration, service or maintenance can cause

property damage, injury or death. Read the installation,

operating and maintenance instructions thoroughly

before installing or servicing this equipment.

VPLUS OWNERS MANUAL

Vision Range

Introduction.

Document Index.

1 Installation Requirements

1.1 Health & Safety

1.2 Packing and Shipping Information

1.3 Heater Suspension

1.4 Wall Mounting

1.5 Clearance to Combustibles

1.6 Gas Connection & Supply Details

1.7 Electrical Connections

1.8 Ventilation Requirements

1.8.1 Unflued Units

1.8.2 Vertical Venting

1.8.3 Fresh Air Intake

1.9 Flue & Combustion Air Inlet

1.10 Technical Details

2 Assembly Instructions

2.1 Tools Required

2.2 Assembly Notes

2.2.1 Tubes

2.2.2 Turbulators

2.2.3 Brackets

2.2.4 Couplers

2.2.5 Reflectors

2.2.6 Bends

2.2.7 Burner/Fan Assembly

2.2.8 Detailed Assembly Drawings

Start Up Instructions

3.1 Tools Required

3.2 Start up procedure

4 Servicing Instructions

4.1 Tools Required

4.2 Burner Description

4.3 Burner Removal

4.4 Burner Gas Injector Servicing

4.5 Burner Head and Electrode Servicing

4.6 Combustion Fan Assembly

4.7 Radiant Tube Servicing

4.8 Reflector Servicing

4.9 Sweeping of Vent

4.10 Re-commissioning after Service

5 Spare Parts

6 Troubleshooting Guide

7 Replacing Parts

7.1 Burner Controller Replacement

7.2 Air Pressure Switch Replacement

7.3 Gas Valve Replacement

8 User and Operating Instructions

8.1 To Start Heater

8.2 To Switch Off Heater

8.3 Servicing

and servicing is undertaken on radiant tube

heaters specified in these instructions, due care

and attention is required to ensure that working

at height regulations are adhered to at the

mounting heights specified.

PLEASE READ this document prior to

installation to familiarize yourself with the

components and tools you require at the various

stages of assembly.

All Dimensions shown are in inches unless

otherwise stated.

The manufacturer reserves the right to alter

specifications without prior notice.

Welcome to the new range of high efficiency

AmbiRad VPLUS infra-red heaters. Local

regulations may vary and it is the installer’s

responsibility to ensure that such regulations

are satisfied.

All installation, assembly, commissioning and

service procedures must be carried out by

suitable qualified competent persons and

conform with local building codes, or in the

absence of local codes, with the National Fuel

Gas Code ANSI Z223.1/NFPA 54 or the

National Gas and Propane Installation Code

CSA B149.1

When assembling, installing, commissioning

1. Installation Requirements.

only be installed where flammable gases

or vapors are not generally present.

B. Heaters may be suspended either

horizontal or at an angle, or may be wall

mounted. See section 1.5 for clearance

dimensions.

C. The installation must conform with local

building codes or, in the absence of local

codes, with the National Fuel Gas Code,

ANSI Z223.1/NFPA 54 or the Natural Gas

and Propane Installation Code, CSA

B149.1.

1.1 Health and Safety

A. Heater is intended for heating

non-residential indoor spaces and should

Improper installation, adjustment,

alteration, service or maintenance

can cause property damage, injury or

death. Read the instructions thoroughly

before installing of servicing this

equipment.

D. The unit shall be electrically grounded in

accordance with National Electric Code

ANSJJNFPA 70-1987.

E. The heater may be installed in aircraft

hangars installed in accordance with the

Standard for Aircraft Hangars, ANSI/

NFPA 409 and in automotive garages

when installed in accordance with the

Standard for Parking Structures, ANSI/

NFPA 88A, or the Standard for Repair

Garages, ANSI/NFPA 88B, or the

Canadian Natural Gas and Propane

Installation Code, CSA B149.1, and are

so marked.

Ensure that minimum clearances will be

maintained to vehicles parked below the

heater.

1.2 Packing and Shipping Information

See section 2 for assembly drawings. Material

list with part numbers and descriptions for each

part will accompany each shipment.

Heaters include: Options:

Burner/Control 1 180° Bend

Radiant Tubes 1 or 2 90° Bends

Reflectors

Brackets Ball Valve

Fan Vent Hoods

U-Bend (U-tube only) Hanging Assembly

Flex Gas Connector* (Chain etc)

Tube Couplings

* Connector must comply with ANSI Z21.24/CSA 6.10.

Shipping packages for individual projects will be

boxed and crated as outlined in the specific bill

of lading.

1.3 Heater Suspension

Attachment to the heater support lugs should be

made by a ‘speed link’, D shackle or in the case

of drop rods, a closed formed hook. The

hanging attachments to overhead steelwork

etc. must be purpose made to good sound

engineering practice or of a proprietary type

fixing. They must be adequately fixed and

designed to carry the whole weight of the

heater. In the event of suitable roof steelwork

being unavailable, additional steelwork should

be fitted to enable vertical hangers to be used

for suspending the heaters.

These methods are illustrated in Figure 1. If

there are any doubts as to the strength or

suitability of roof steelwork to which heaters are

to be suspended, please refer to a Consultant,

Architect or owner of the building.

It is recommended that the heater is raised to its

final position once the assembly of the tube/

bracket/reflector has been completed. Longer

tube assemblies may be raised in more than

one sub-assembly with final tube connection

made in the air.

DROP ROD CHAIN 55° SUSPENSION

BEAM CLAMP

3/8"Ø ROD

TURNBUCKLE

(±3"ADJUSTMENT)

2/0 GA CHAIN

(TWISTED LINK, PLATED)

TUBE

NOTE.

HOOKS ARE TO

BE CLOSED UP

AFTER ASSEMBLY

OPTIONAL

REFLECTOR

BRACKET

EYE HOOKS

Figure 1. Recommended Methods of Heater Suspension.

Model Recommended Mounting Height (ft)

Standard Inclined

min recommended min recommended

40 12 14 10 11

60 12 14 10 11

100 14 16 12 13

125 14 16 12 13

150 16 18 14 15

170 16 18 14 15

200 18 20 16 17

80 12 14 10 11

Minimum clearance from the heater must be maintained from vehicles parked below heater.

In all situations, clearances to combustibles must be maintained. Signs should be posted in

storage areas to specify maximum stacking height to maintain required clearance to

combustibles. Refer to mounting clearance tables.

WARNING:

Clearance to Combustibles (in)

Model A B B1 C1 C2 C3 D1 D2 E

40 49 24 41 20 822 812 12

80 74 29 41 20 622 812 12

100 74 32 41 20 622 816 12

125 74 39 47 20 622 20 18 12

150 74 39 48 20 622 20 18 12

170 86 48 48 20 622 20 20 12

200 86 48 48 20 622 20 20 12

60 74 29 41 20 622 812 12

The suggested mounting heights for AmbiRad

heaters are given in table 1 below.

1.4 Wall Mounting

These radiant tube heaters can be wall

mounted using the appropriate bracket.

When using the wall mounting brackets the

heater must be inclined at an angle between

35° and 55°.

1.5 Clearance to Combustibles.

Minimum clearance to combustibles are shown

in Figure 2. Refer to table 2 below.

Figure 2 Clearance to Combustibles.

The minimum clearances to combustible materials are given in the tables below. These

minimum distances MUST be adhered to at all times.

0° to 55°

Ensure that there is adequate

provision in the building for

combustion and ventilation air

supply. Installation must meet

minimum requirements and

appliciable codes.

Burner end.

Outlet end.

Angled view.

End view.

Below

heater

Side

vented

Side

unvented

End

unvented

Above outlet

unvented

Above

Reflector

Above

Burner

Service

distance

Return end on

U tube heater

1.6 Gas Connection and Supply

The gas connection on the heater is ½”N.P.T

external thread.

Injector sizes and manifold pressure for the

burners are shown in the table 3. The gas

supply piping and connections must be installed

so that the minimum pressure stated is

achieved.

A gas shut off valve and union should be fitted

in the gas supply line close to the heater and a

⅛” N.P.T plugged tapping, accessible for test

gauge connection, provided immediately

upstream of the appliance gas inlet.

It is essential to provide some flexibility in the

final gas connection preferably by use of an

approved flexible gas connector or stainless

steel expansion loop.

Take care when making a gas connection

to the heater not to apply excessive turning

force to the internal controls.

Depending on the specific installation, the

flexible gas hose may be routed to the gas cock

at any of the following angles in relation to the

burner:

Care must be taken to observe the minimum

pipe bend diameter (minimum 10”, maximum

14”) & pipe expansion distance (minimum 1⅛”,

maximum 3¾”).

The correct installation as shown will allow

for approx 4” of movement due to expansion.

WARNING: Before installation, check

that the local distribution conditions,

nature of gas and pressure, and adjustment

of the appliance are compatible.

Figure 3. Correct orientation of Ball Valve

Gas Flow

Figure 4. Correct Installation of Flexible

Gas Connection

WARNING: CONNECTOR MUST BE INSTALLED IN A “U” CONFIGURATION. USE

ONLY THE 36” LONG CONNECTOR OF ½” NOMINAL ID THAT WAS

FURNISHED WITH THIS HEATER.

1.7 Electrical Connections

This appliance must be electrically grounded

Supply 120V 60Hz single phase.

Standard heater 0.16HP.

Current rating 1.2 amp max (inductive).

Fuse: external 3 amp.

Important: All electrical work should be done by

a qualified electrician in strict accordance with

the National Electrical Code ANSI/NFPA 70. or

Canadian codes CSA C22.1

The electrical supply to the heater is by three

wires: live, neutral and ground connections.

Install in accordance with all state & local

codes.

It is recommended that the electrical circuit

controlling the heater or group of heaters

include thermostats and if required manual

control switches. All such controls and switch

gear must be rated to handle the total inductive

load of the circuit they control. For large

installations the use of relays or contactors

should be considered.

Control panels are available from the

manufacturer incorporating multiple Black Bulb

Thermostats controlling up to 10 heaters per

thermostat for zone control of the heated area.

(Control Panels

are not A.G.A/CSA

design certified)

Where alternative

manufactures’

controls are used,

please refer to

their instructions

for their siting and

installation details.

Table 3 Gas Supply Pressures

Gas Type Natural Gas

Max Supply Pressure (in W.C) 10.0

Min inlet gas supply (in W.C) 40 to 150,000 btu 5.0

Min inlet gas supply (in W.C) 170 to 200,000 btu 7.0

Gas Supply Connection ½” N.P.T internal thread

WARNING: Before making electrical

connections, switch OFF the main

electrical disconnect. There may be more

than one disconnect switch. Lock out

and tag switch with a suitable warning

label. Electrical shock can cause

personal injury or death.

Switch with

Fuse

Fan plugs into burner

Figure 5.a Typical VPLUS U range Wiring Connections

WARNING: FIRE OR EXPLOSION HAZARD - Expansion of the radiant pipe occurs with

each firing cycle causing the burner to move with respect to the gas line. This can

result in a gas leak producing an unsafe condition. It is therefore essential to provide some

flexibility in the final gas line connection - preferably by use of an approved armoured

flexible connector or stainless steel expansion loop as shown in the drawings.

Figure 6. Internal Burner Wiring Diagram.

Figure 5.b Typical VPLUS range Wiring Connections

MAIN J.S.T.

BROWN

GREY

BLACK

FLAME SENSOR

IGNITOR

911

10 12

24PURPLE

BLACK

LAMPS

BURNER

YELLOW

GREY

BROWN

GREEN

BROWN

SOLENOID VALVE

SWITCH

N.C.

N.O.

BROWN

BURNER

POWER INPUT

FAN

POWER

WHITE

VACUUM

BROWN

VALVE

J.S.T.

GREEN

WHITE

GREEN

YELLOW

Switch with

Fuse

Fan plugs into burner

If any of the original wire as supplied with the appliance must be replaced, it must be replaced

with wiring material having a temperature rating of at least 220°F/105°C

1.8 Vent Requirements and Details

1.8.1 Unvented units

Heaters maybe installed without a vent

providing the governing building codes are met

and consideration is properly given to

possibilities of condensation on cold surfaces.

Installation shall meet the following

requirements when unvented:

• Internal volume of the heated room must

be greater than 214cu.ft. per 100 BTU/

HR of heaters installed.

• Natural or mechanical means shall be

provided to supply and exhaust at least 4

CFM per 1000 BTU per hour input of in-

stalled heaters.

• Combustion gasses shall not impinge on

combustible materials with a temperature

in excess of 150°F.

1.8.2 Vertical venting

The heater can be installed with a vertical vent.

All vent piping should be adequately supported

from the building structure and terminated with

an approved terminal. The maximum

recommended vent length is 25ft with a

maximum of two bends. All connections

should be properly sealed. refer fig 7a

1.9.3 Horizontal venting

Individual units can be vented horizontally

through side walls. Venting must be installed in

accordance with ANSI Z223.1 (NFPA-54) and

local codes. Recommended terminals are

AmbiRad V0700 for 4” and V0800 for 6” vent.

Maximum length of vent is 25ft with 2 - 90° long

radius elbows.

Runs of 12ft or shorter can use 4” dia vent.

Runs over 12ft should use 6” flue pipe.

Any portion of vent that passes through a

combustible wall must be insulated, or use an

approved insulating thimble.

Standard vent terminals must extend at least 6”

from the wall and at least 24” from any

combustible overhang. Protect the building

material from degradation by the vent gasses.

Vent joints should be sealed and secured using

at least 3 sheet metal screws. Should

condensation occur the vent should be

shortened or insulated.

The terminal should be at least 3ft away from

any air intake to the building

If the heater is equipped with ducted combustion

air, the vent terminal must be at least 3ft away

from the air inlet and located higher than the

inlet.

The vent terminal must be protected from

blockage by snow. Refer fig 7a & b

1.9 Fresh Air Intake

Whenever the heater is installed in locations

where airbourne dust or other pollutants are

present, a fresh air supply should be ducted to

the burner.

Fig-

Heater 1 Heater 2 Heater 3 Heater 4 Heater 5 Heater 6

Double pole insulator

adjacent to each

heater

Thermostats

Zone 1 Zone 2

Time

switch Manual

switch

Frost Thermostat

120v

1ph 60Hz

(Two Zones)

Double pole

fuse isolator

{

*Optional

A fresh air duct of 4” dia. Should be

installed from the fresh air to the air

intake connection on the fan

housing. A flexible jointing piece

should be installed at the fan

connection with hose clamps to

facilitate expansion and contraction.

The maximum recommended length

air duct is 25ft and the maximum

number of bends is 2. The minimum

length is 18”. The location of the

fresh air duct inlet must be where it

will receive dust free clean air. An

inlet cap with bird screen must be

fitted at the inlet of the duct. If the

duct inlet is located above the roof

the underside of the inlet terminal

must be at least 2ft above roof level

and at least 10” above any

projection on the roof within 7ft of

the inlet. Intake pipe, fittings and

sealant are not furnished by the

manufacturer. Refer fig 8c & d

REFLECTOR

END OF RADIANT TUBE

VENT ADAPTOR ELBOW

12'-0"

(APPROXIMATE

MAXIMUM DIMENSIONS)

CODE APPROVED VENT

THROUGH ROOF

SEAL

SUPPLIED BY OTHERS

ROOF

4" O.D. OR 6" O.D. FLUE

HIGH TEMPERATURE SILICONE

SEAL JOINTS WITH

(REQUIRED ONLY FOR 6" DIA. VENT)

4" TO 6"DIA. ALUMINIUM ADAPTER

RADIANT

TUBE

REFLECTOR

4" TO 6"DIA. ALUMINIUM ADAPTER TERMINAL

COLLAR

SEAL JOINTS WITH

HIGH TEMPERATURE

WALL

(REQUIRED ONLY FOR 6" DIA. VENTS)

4" O.D. MAXIMUM LENGTH = 12'-0"

6" O.D.MAXIMUM LENGTH = 25'-0"

(PLUS A MAXIMUM OF 2 x 90° BENDS

END OF

SUPPLIED BY OTHERS

COUPLER

SILICONE

4" O.D. PIPE

CLAMPS

4" O.D. FLEXIBLE DUCT

BURNER

MAX LENGTH = 25'-0" WITH 2-90° LONG RADIUS BENDS

INLET WITH

SEAL JOINTS WITH

SILICONE OR DUCT TAPE

WALL

BIRD SCREEN

Figure 8.a Vertical Venting.

Figure 8.b Horizontal Venting.

Figure 8.c Fresh Air Ducted Intake. Figure 8.d Wall Terminal Intake Kit.

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