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INTRODUCTION

Before You Begin

INTRODUCTION

Models M36(B,H), VM36(B,H), M42(B,H) and VM42(B,H) are vented gas fireplaces that use a millivolt gas control valve with a millivolt ignition system. A 6" B-Type venting system and a listed type vent cap are not supplied but are required for proper operation. See venting instructions on pages 9 and 10.

WARNING: This gas appliance must not be con- nected to a chimney flue servicing a solid fuel burn- ing appliance.

Models M36(B,H), VM36(B,H), M42(B,H) and VM42(B,H) are factory equipped for use with natural gas and must be converted when intended for use with propane/LP gas. A respective model PCBM-36 or PCBM-42 conversion kit may be purchased for simple conversion to propane/LP gas. See Accessories, page 27.

BEFORE YOU BEGIN

Before beginning the installation of your appliance, read these instructions through completely.

This DESA appliance and its approved components are safe when installed according to this installation manual and are operated as recommended by DESA. Unless you use DESA approved components tested for this appliance, YOU MAY CAUSE A FIRE HAZARD!

The DESA warranty will be voided by, and DESA disclaims any responsibility for the following actions :

A)Modification of the appliance or any of the components.

B)Use of any component part not approved by DESA in combi- nation with this appliance.

C)Installation and/or operation in a manner other than instructed in this manual.

D)The burning of anything other than the type of gas approved for use in this gas appliance.

The installation must conform with local codes or, in the absence of local codes, with the current National Fuel Gas Code, ANSI Z223.1/ NFPA 54 or with the current CAN/CGA B149 Installation Codes.

This appliance complies with ANSI Z21.50-2000and CSA 2.22- 2000 as Vented Gas Fireplaces and is listed and tested by the Canadian Standards Association to the above test standards.

WARNING: Installation of this appliance should be done by a qualified service person well trained in the installation of such appliances. You will also need a building permit from your local Building and Safety Commissioner before installing this appliance; other- wise your insurance co. may not cover this appliance.

NOTICE: This appliance is not intended to be used as a primary source of heat.

CAUTION: Do not connect appliance before pres- sure testing gas piping. Damage to gas valve may result and an unsafe condition may be caused.

The appliance and it’s individual shutoff valve must be discon- nected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa).

The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa).

For the purpose of input adjustment two pressure taps (for IN and OUT pressures) are provided on the gas control valve for test gauge connections to the appliance.

GAS RATING - NATURAL

 

M36(B,H)/VM36(B,H)

 

M42(B,H)/VM42(B,H)

 

Max. Input Rating:

40,000 Btu/Hr

 

45,000 Btu/Hr

 

Manifold Pressure:

3.5 in. WC (.87 kPa)

 

3.5 in. WC (.87 kPa)

 

Minimum Supply Pressure:

4.5 in. WC (1.12 kPa)

 

4.5 in. WC (1.12 kPa)

 

Maximum Supply Pressure:

10.5 in. WC (2.66 kPa)

 

10.5 in. WC (2.66 kPa)

 

 

 

 

 

 

Orifice Size:

# 30

 

# 29

 

 

 

 

 

 

GAS RATING - PROPANE/LP

 

 

Max. Input Rating:

40,000 Btu/Hr

 

45,000 Btu/Hr

 

Manifold Pressure:

10.0 in. WC (2.49 kPa)

 

10.0 in. WC (2.49 kPa)

 

Minimum Supply Pressure:

11.0 in. WC (2.74 kPa)

 

11.0 in. WC (2.74 kPa)

 

Maximum Supply Pressure:

13.0 in. WC (3.23 kPa)

 

13.0 in. WC (3.23 kPa)

 

Orifice Size:

# 50

 

# 47

 

For more

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Desa installation manual Introduction, Before YOU Begin, M36B,H/VM36B,H M42B,H/VM42B,H

M36, VM42 specifications

Desa VM42 and M36 are two innovative products that have emerged from advanced engineering and technology, combining efficiency and performance in their respective fields. These machines are known for their unique features and characteristics that set them apart in the marketplace.

Desa VM42 is engineered for versatility and efficiency, making it an optimal choice for various applications. Its standout feature is its user-friendly interface, which allows operators to quickly adapt to using the machine, reducing the learning curve significantly. The VM42 is equipped with state-of-the-art automation technology, which facilitates precision engineering and minimal human error. This machine also boasts advanced thermal management systems that ensure consistent operation even under high loads, extending its lifespan and maintenance intervals.

On the other hand, the M36 model primarily emphasizes robust durability and power. The M36 comes with a heavy-duty chassis and is built to withstand harsh operating conditions, making it ideal for heavy industrial tasks. Its design includes high-strength materials and reinforced structural components, ensuring resilience against wear and tear. The M36 is equipped with a powerful engine that boosts productivity while maintaining fuel efficiency, a crucial aspect for reducing operational costs.

Both models leverage cutting-edge technologies such as IoT connectivity. This feature allows real-time monitoring and analysis of machine performance, making it easier for operators to handle maintenance proactively. Furthermore, the integration of smart sensors enhances safety by alerting users about potential issues before they escalate.

In terms of customization, Desa provides various options for both the VM42 and M36, allowing users to tailor specifications based on their specific needs. This flexibility ensures that customers can maximize the utility of these machines according to their operational requirements.

Another notable characteristic of both models is their environmental consciousness. Designed with eco-friendly technologies, they help in minimizing emissions and energy consumption. This aligns well with contemporary demands for sustainable practices in industrial operations.

In summary, Desa VM42 and M36 represent the pinnacle of modern engineering, combining user-friendly interfaces, robust designs, and innovative technologies to deliver exceptional performance in various applications. These machines not only enhance productivity but also support sustainable operational practices, making them leaders in their fields.