Hydronic Furnace's Specifications - Rinnai 37AHB SERIES Installation, Operation And Maintenance Manual

Table 4: Hydronic Furnace's Specifications
UNIT MODELS
Trade Name
RATING AND PERFORMANCE
Nominal Output Capacity (BTU/h) †
Air Side Temperature Rise Rate in
( 68ºF Entering Air @ 150ºF Entering Water)
External Static Pressure
Nominal Airflow (CFM)
ELECTRICAL
Power Supply
Minimum Circuit Ampacity
Max. Rating of Overcurrent Protective Device
Maximum Fuse or CKT BKR Size
Transformer (24V)
Printed Circuit Board
CONTROLS
Available Unit Configurations
Safety Door Switch
Blower Off Delay
Cool / Heat Blower On Delay
INDOOR BLOWER MOTOR
Type
Motor HP
Motor (Full Load Amps)
Run Capacitor
Volts-PH-HZ
CIRCULATING PUMP
Type
Volts-PH-HZ
Motor (Full Load Amps/Locked Rotor Amps)
Pump Motor HP
Run Capacitor
Maximum Working Pressure
Min/Max Fluid Temperature
HYDRONIC HEATING COIL
Coil Construction
Rows...Fins/In
Total Face Area
Approximate Internal Volume
PIPING CONNECTIONS - (QTY)
Type
Supply Diameter
Return Diameter
RETURN-AIR FILTERS
Filter Type (Throwaway)
UNIT WEIGHT
Shipping
Installed (with water)
Rinnai is continually updating and improving products. Therefore, specifications are subject to change without prior notice.
† Tested in accordance with ANSI/ASHRAE Standard 37-Latest edition.
‡ Airflows shown are nominal (blower speeds are factory set). For air delivery
other than stated, refer to Air Delivery & Performance table.
†† Required filter sizes shown are based on the larger of the AHRI (Air
Conditioning & Refrigeration Institute) rated cooling airflow or the heating
airflow velocity of 300 ft/min for throwaway type or 450 ft/min for high-
capacity type.
Descriptor (Typ.)
o
F
Heat Speed
(in. W.C.)
Heating
Cooling Range
V - HZ - PH
MCA
MOP (Calculated)
Amps
PCB
A/C or HP
Single or Two Stage
FS or WH
Rated Voltage
Resistive Load
HTG/CLG
Varies
FLA
mfd/volts
FLA/LRA
mfd/volts
PSI
ºF (ºC)
Sq. Ft.
Gallons
Inches
Inches
Inches ††
lbs
lbs
Rinnai Corporation Hydronic Furnace (37AHB) Manual
37AHB04508KA5 37AHB06012KA5 37AHB07514KA5 37AHB09016KA5
AHB45 AHB60
45,000 60,000
50 50
0 to 1.0 0 to 1.0
800 ‡ 1200 ‡
650 - 800 650 - 1200
9.6 9.6
13.6 13.6
15 15
40 VA (Primary: 120 VAC / Secondary: 24 VAC)
INTEGRAL (with connections for A/C system, UV lamp, Humidifier, and
electronic air cleaner)
Dip Switch Selectable (SW1)
Dip Switch Selectable (SW1)
Shunt Selectable (P-7)
Dip-switch Selectable/Fixed 30 Sec
Cool: 1 second / Heat: 25 seconds (see Sequence of Operations)
DIRECT DRIVE MOTOR (ECM)
1/2 1/2
6.2 6.2
N/A
120 (49) / 160 (71)
3/8" OD copper tubes, aluminum fins, galvanized steel frame
2...16 2...16
2.3 2.6
0.47 0.53
12 X 20 X 1 16 X 20 X 1
92 109
107 127
Side intake filter to be (1) 20"x20"x1" typical for all models.
Air filter pressure drop for non-standard filters must not exceed 0.08 in. wg.
AHB75
75,000
50
0 to 1.0
1400 ‡
1000 - 1600
115-60-1
12.43
18
20
125 VAC
21 Amp
3/4
8.5
115-1-60
Wet Rotor
115-1-60
1.8 / 2.6
1/8
14/250
125
3...14
2.8
0.86
Copper Stubs
(1) 3/4
(1) 3/4
20 X 20 X 1
118
138
AHB90
90,000
50
0 to 1.0
1600 ‡
1200 - 1750
16.2
23.7
25
1
11.5
N/A
3...15
3.3
1.02
(2) 12 X 20 X 1
136
159
31