Sizing Between Single or Second Stage Regulator and Appliance*

Maximum Propane Capacities Listed are Based on 1/2" W.C. pressure drop at 11" W.C. setting. Capacities in 1,000 BTU/hour.

Pipe or

 

 

 

 

 

 

 

Nominal Pipe Size

 

Tubing

 

Tubing Size, O.D. Type L

 

 

Schedule 40

 

Length,

3/8"

1/2"

5/8"

3/4"

7/8"

1-1/8"

1/2"

3/4"

1"

1-1/4"

1-1/2"

Feet

 

 

 

 

 

 

 

 

 

 

 

10

39

92

199

329

501

935

275

567

1,071

2,205

3,307

20

26

62

131

216

346

630

189

393

732

1,496

2,299

30

21

50

107

181

277

500

152

315

590

1,212

1,858

40

19

41

90

145

233

427

129

267

504

1,039

1,559

50

18

37

79

131

198

376

114

237

448

913

1,417

60

16

35

72

121

187

340

103

217

409

834

1,275

80

13

29

62

104

155

289

89

185

346

724

1,066

100

11

26

55

90

138

255

78

162

307

630

976

125

10

24

48

81

122

224

69

146

275

567

866

150

9

21

43

72

109

202

63

132

252

511

787

200

8

19

39

66

100

187

54

112

209

439

665

250

8

17

36

60

93

172

48

100

185

390

590

*Data in accordance with NFPA pamphlet NO. 54

WARNING

To prevent death, serious personal injury or property damage due to fire or explosion caused by a propane gas leak, install a gas detecting warning device.

WARNING

If the propane gas furnace is installed in a basement, an excavated area or a confined space, a warning device is required due to:

•Propane gas is heavier than air and any leaking gas can settle in any low areas or confined spaces.

•Propane gas odorant may fade, making the gas undetectable except with a

warning device.

If the presence of gas is suspected, follow the instructions on Page 2 of this manual.

VIl. Electrical Wiring

WARNING

To prevent death or personal injury due to electric shock, disconnect electrical power before changing any electrical wiring.

CAUTION

When servicing controls, label all wires before disconnecting. Wiring errors can cause improper and dangerous operation. After servicing is completed, always verify proper operation.

Power supply to the furnace must be NEC Class 1, and must comply with all applicable codes. The furnace must be electrically grounded in accordance with the local codes or, in their absence, with the latest edition of the National Electrical Code, ANSI NFPA No. 70 and/or the CSA C22. 1 Electrical Code. A fused disconnect must be provided and sized in accordance with the unit maximum overcurrent protection.

Figure 20

Typical Field Wiring

(24 VAC Control Circuit)

A 40 VA transformer and an integrated electronic control are built into the furnace to allow use with most cooling equipment.

CAUTION

To avoid the risk of electrical shock, wiring to the unit must be properly polarized and grounded.

To provide more reliable sensing of flame, the ground wire must run to the electrical panel.

Line voltage wiring must enter into the junction box pro- vided with the furnace.

As shipped, the junction box is attached to the left side of the furnace (as viewed for an upflow installation). If this is suitable for your installation, no changes are necessary.

If the line voltage wiring is to enter through the right side of the furnace (as viewed for an upflow installation), relocate the junction box as shown in Figure 21.

Junction

Box

The unit wiring harness is an integral part of the furnace. Field alteration to comply with electrical codes should not be required.

Figure 21

Junction Box (Left Side)

16

Page 15 Page 17
Page 16
Image 16
Amana VR8205 VIl. Electrical Wiring, Typical Field Wiring VAC Control Circuit, Junction Box Left Side
Page 15 Page 17

VR8205 specifications

The Amana VR8205 is a robust and innovative gas valve designed for use in a variety of heating applications, particularly in residential and commercial HVAC systems. This versatile valve offers a combination of advanced technologies and user-friendly features, making it a popular choice among HVAC professionals and system installers alike.

One of the key features of the Amana VR8205 is its two-stage operation, allowing for precise control of gas flow. The dual-stage design enables the valve to modulate the gas supply based on the heating demand, which enhances system efficiency and promotes better temperature regulation. This feature not only contributes to energy savings but also helps maintain a comfortable indoor environment.

Additionally, the VR8205 is equipped with a strong, durable body construction that ensures reliability and longevity. Designed to withstand harsh operating conditions, the valve’s materials are resistant to corrosion and wear, making it suitable for various applications. The robust design of the Amana VR8205 minimizes the likelihood of leaks or failures, providing peace of mind to both installers and end-users.

The valve operates on low voltage, typically requiring 24 volts, which makes it energy-efficient and compatible with most modern thermostatic control systems. This low-voltage operation also simplifies installation, as it reduces the complexity and requirements for the electrical setup.

Another noteworthy characteristic of the Amana VR8205 is its integrated safety features. It includes a combination of automatic and manual shut-off mechanisms, providing an added layer of safety in case of malfunctions. This ensures that the gas supply can be quickly halted in emergency situations, protecting both people and property.

Moreover, the Amana VR8205 is designed for easy maintenance, featuring simple access points for servicing and troubleshooting. This ease of maintenance is crucial for HVAC professionals, as it allows for quick adjustments and repairs, ultimately reducing downtime.

Lastly, the Amana VR8205 has a reputation for adaptability, being compatible with various heating appliances, including furnaces, boilers, and water heaters. Its versatility makes it an excellent solution for a wide range of heating applications, ensuring optimal performance across different systems.

In summary, the Amana VR8205 gas valve is characterized by its two-stage operation, durable construction, low-voltage functionality, integrated safety mechanisms, and ease of maintenance. These features combine to offer a reliable, efficient, and flexible solution for modern heating needs.
Top Page Image Contents