CODE

DESCRIPTION

 

Fan Parameter Errors

74

Periodic Forced Recycle

75

Absolute max fan speed was out of range

76

Absolute min fan speed was out of range

77

Fan gain down was invalid

78

Fan gain up was invalid

79

Fan minimum duty cycle was invalid

80

Fan pulses per revolution was invalid

81

Fan PWM frequency was invalid

82-83

RESERVED

 

Modulation Parameter Errors

84

Lead Lag CH 4-20 mA water temperature setting

85

No Lead Lag add stage error threshold was

 

configured

86

No Lead Lag add stage detection time was

 

configured

87

No Lead Lag drop stage error threshold was

 

configured

88

No Lead Lag drop stage detection time was

 

configured

89

RESERVED

90

Modulation output type was invalid

91

Firing rate control parameter was invalid

92

Forced rate was out of range vs. min/max

 

modulation

93

Forced rate was invalid, % vs. RPM

94

Slow start ramp value was invalid

95

Slow start degrees value was invalid

96

Slow start was ended due to outlet sensor fault

97

Slow start was end due to reference setpoint fault

98

CH max modulation rate was invalid, % vs. RPM

99

CH max modulation rate was > absolute max rate

100

CH modulation range (max minus min) was too

 

small (< 4% or 40 RPM)

101

DHW max modulation rate was invalid, % vs.RPM

102

DHW max modulation rate was > absolute max

 

rate

103

DHW modulation range (max minus min) was too

 

small (< 4% or 40 RPM)

104

Min modulation rate was < absolute min rate

105

Min modulation rate was invalid, % vs. RPM

106

Manual rate was invalid, % vs. RPM

107

Slow start enabled, but forced rate was invalid

108

Analog output hysteresis was invalid

109

Analog modulation output type was invalid

110

IAS open rate differential was invalid

111

IAS open step rate was invalid

112

MIX max modulation rate was invalid, % vs. RPM

113

MIX max modulation rate was >absolute max or <

 

absolute min rates

CODE

DESCRIPTION

114

MIX modulation range (max minus min) was too

 

small (< 4% or 40 RPM)

 

Modulation Operation Faults

115

Fan was limited to its minimum duty cycle

116

Manual rate was > CH max modulation rate

117

Manual rate was > DHW max modulation rate

118

Manual rate was < min modulation rate

119

Manual rate in Standby was > absolute max rate

120

Modulation commanded rate was > CH max

 

modulation rate

121

Modulation commanded rate was > DHW max

 

modulation rate

122

Modulation commanded rate was < min

 

modulation rate

123

Modulation rate was limited due to outlet limit

124

Modulation rate was limited due to Delta-T limit

125

Modulation rate was limited due to stack limit

126

Modulation rate was limited due to

 

anticondensation

127

Fan Speed out of range in RUN

128

Modulation rate was limited due to IAS was open

129

Slow start ramp setting of zero will result in no

 

modulation rate change

130

No forced rate was configured for slow start ramp

 

CH parameter Errors

131

CH demand source was invalid

132

CH P-gain was invalid

133

CH I-gain was invalid

134

CH D-gain was invalid

135

CH OFF hysteresis was invalid

136

CH ON hysteresis was invalid

137

CH sensor type was invalid

138

CH hysteresis step time was invalid

139

CH remote control parameter was invalid

140

CH ODR not allowed with remote control

141

Steam P-gain was invalid

142

Steam I-gain was invalid

143

Steam D-gain was invalid

144

Steam OFF hysteresis was invalid

145

Steam ON hysteresis was invalid

 

CH Operation Faults

146

CH control was suspended due to fault

147

CH header temperature was invalid

148

CH outlet temperature was invalid

149

CH steam pressure was invalid

 

CH Parameter errors (continued)

150

Steam setpoint source parameter was invalid

151

Minimum water temperature parameter was

 

greater than setpoint

70

Page 70
Image 70
A.O. Smith 1700, 3400, 2600, 2000 instruction manual Fan Parameter Errors

3400, 1700, 2000, 2600 specifications

A.O. Smith, a leader in water heating solutions, has developed a range of high-efficiency water heaters that cater to various residential and commercial needs. Among their stellar offerings are the A.O. Smith 2600, 2000, 1700, and 3400 models, each boasting impressive features, cutting-edge technologies, and excellent energy efficiency.

The A.O. Smith 2600 model is designed for those who require a robust water heating solution with a capacity to handle high-demand scenarios. It utilizes a highly efficient heating element that provides rapid heating and maintains a steady output. The built-in smart control system allows users to monitor temperature settings and track energy consumption, ensuring optimal performance.

Next in line, the A.O. Smith 2000 is perfect for households that require a reliable and efficient water heater without compromising on space. This compact model integrates advanced thermal insulation that minimizes heat loss, coupled with a powerful heating element that ensures quick heating times. Its sleek design makes it suitable for various installations while maintaining aesthetic appeal.

The A.O. Smith 1700 model caters specifically to smaller residential needs but retains features that align with higher-end models. It incorporates state-of-the-art safety features, including overheat protection and a pressure relief valve. Its lightweight structure and ease of installation stand out, making it a recommended choice for those looking for efficient heating without extensive modifications to their plumbing systems.

Lastly, the A.O. Smith 3400 is a powerhouse designed for larger commercial applications. This model offers exceptional heating capacities and includes advanced technologies such as a digital display for easy monitoring and control. The robust build is complemented by a high-performance insulation system that significantly reduces energy consumption and operating costs.

All A.O. Smith water heaters, including the 2600, 2000, 1700, and 3400 models, feature corrosion-resistant materials ensuring longevity and durability. With their commitment to quality and innovation, A.O. Smith continues to provide water heating solutions that meet modern demands while emphasizing energy efficiency and user convenience. Whether for residential or commercial use, each model represents the pinnacle of reliability and performance in water heating technology.

In conclusion, A.O. Smith has established itself as a reliable choice for water heaters, with models that cater to diverse needs without compromising on efficiency or quality.