Owner's manual

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AOHM

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FLUID COOLING

Mobile AOHM & AOVHM Series

AIR COOLED

AOHM/AOVHM

Features

AO/AOVH Series with

Hydraulic Motor

High Heat Removal

Heavy Duty Construction

Wide Flow Range

Heat Removal up to 210,000 BTU/Hr.

Long Life Hydraulic Motor

NPT Connections

Materials

Tubes Copper

Fins Aluminum

Turbulators Steel

Manifolds S t e e l

Connections S t e e l

Cabinet Steel with Baked Enamel Finish

Fan Blade Aluminum with Steel Hub

Fan Guard Zinc Plated Steel

Fan Adapter S t e e l

Ratings

Operating Pressure 300 psi

Test Pressure 300 psi

Operating Temperature 400° F

OPTIONS

Built-in Relief Bypass Valve

SAE or BSPP Connections

Corrosion Resistant Coating

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How to Order

Model

Series

AOHM

AOHMR

AOVHM

AOVHMR

Model Size Selected

– –

Connection

Type*

Blank - NPT

S - SAE

Foot Mounting

Brackets

Blank - No Brackets

FB - Foot Brackets

ADD FOR AOHM &

AOHMR MODELS ONLY

–

Number of

Passes**

Blank - No Bypass

1 - One Pass*

2 - Two Pass

Relief Bypass**

Blank - No Bypass

30 - 30 psi

60 - 60 psi

*Other connection types available. Please consult factory for assistance.

**ADD FOR AOHMR & AOVHMR MODELS ONLY

AOHMR - Relief Bypass Included

AOVHMR - Relief Bypass Included (available in 2 pass only)

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Summary of content (5 pages)

PAGE 1
FLUID COOLING | Mobile AOHM & AOVHM Series Features AO/AOVH Series with Hydraulic Motor n High Heat Removal n Heavy Duty Construction n Wide Flow Range n Heat Removal up to 210,000 BTU/Hr.
PAGE 2
Dimensions Fan Rotating Clockwise/Facing Motor Shaft 1/2-13 UNC-2B 2 HOLES TOP, 2 HOLES BOTTOM (4 HOLES TOP, 4 HOLES BOTTOM AOHM 30, 35 & 40) M OUTLET M INLET .56 DIA. 6 HOLES 2.31 10.38 9.25 G H J .56 1.75 C 10.36 K A D AIR FLOW .75 B L F 1.62 AIR COOLED AOHM/AOVHM 6.31 4.62 E 1.13 Foot Brackets: Optional for AOHM Standard with AOVHM See dimensional chart for external NPT or optional internal SAE connection size. AOHM-5 11.81 14.81 7.69 11.69 AOVHM-5 16.70 AOHM-10 8.
PAGE 3
Performance Curves AOHM Series AIR COOLED AOHM/AOVHM HEAT DISSIPATION BTU/HR @ 50˚F E.T.D. 100,000 90,000 80,000 70,000 40-1 35-1 60,000 30-1 50,000 40,000 25-1 40-2 30,000 20-1 25,000 35-2 20,000 30-2 15,000 15-1 25-2 10-1 20-2 10,000 9,000 8,000 5-1 15-2 7,000 6,000 OIL PRESSURE DROP = 5 PSI = 10 PSI = 20 PSI 10-2 5,000 4,000 3,000 5-2 1 -1 (1 PASS) -2 (2 PASS) 1.5 2 2.
PAGE 4
Selection Procedure Performance Curves are based on 50 SSU oil entering the cooler 50°F higher than the ambient air temperature used for cooling. This is referred to as a 50°F E.T.D. Step 1 Determine the Heat Load. Heat load may be expressed as either Oil Temperature: Oil coolers can be selected using entering or leaving oil temperatures. Off-Line Recirculation Cooling Loop: Desired reservoir temperature is the oil temperature entering the cooler. horsepower or BTU/Hr. To convert horsepower to BTU/Hr.
PAGE 5
Built-In Relief Bypass AOHMR Series One Pass (Medium to High Oil Flows) Model Number Flow Range GPM (USA) AIR COOLED AOHM/AOVHM AOHMR - 5-1 2 - 80 AOHMR - 10-1 3 - 80 AOHMR - 15-1 4 - 80 AOHMR - 20-1 5 - 80 AOHMR - 25-1 6 - 100 AOHMR - 30-1 7 - 100 AOHMR - 35-1 8 - 112 AOHMR - 40-1 9 - 118 Two Pass (Low to Medium Oil Flows) Model Number Flow Range GPM (USA) AOHMR - 5-2 2 - 25 AOHMR - 10-2 2 - 30 AOHMR - 15-2 2 - 40 AOHMR - 20-2 2 - 30 AOHMR - 25-2 2 - 40 AOHMR - 30-2 2 - 40