MrCool PRODIRECT Series Quick start guide

PRODIRECT™ SERIES

Split System Heat Pump & Air Conditioner

13 -14 SEER 1.5-5 Tons Model

HHP140* & HAC140*

Owner & Installation

Manual

Thank you for choosing MRCOOL. Please read this manual carefully before installation and keep it for future reference.

Due to updates and constantly improving performance, the information and instructions within this

manual are subject to change without notice. Please visit www.mrcool.com/documentation to

ensure you have the latest version of this manual.

Version Date: 6-25-21

OUTDOOR UNIT

mrcool.com

These instructions are intended as an aid for qualiﬁed

and licensed service personnel for proper installation,

adjustment, and operation of this unit. Read these

instructions thoroughly before attempting installation

or operation. Failure to follow these instructions may

result in improper installation, adjustment, service or

maintenance possibly resulting in ﬁre, electrical shock,

property damage, personal injury or death.

Table of Contents

1 DIMENSIONS

2 SERVICE SPACE

3 PIPING DIAGRAMS

4 WIRING DIAGRAMS

5 ELECTRIC CHARACTERISTICS

6 OPERATION LIMITS

7 INSTALLATION PROCEDURE

8 LOCATION SELECTION

9 OUTDOOR UNIT INSTALLATION (TOP DISCHARGE UNIT)

10 REFRIGERANT PIPE INSTALLATION

11 VACUUM DRYING AND LEAKAGE CHECKING

12 ADDITIONAL REFRIGERANT CHARGE

13 PIPE INSULATION

14 ELECTRICAL WIRING INSTALLATION & REQUIREMENTS

15 TEST OPERATION

16 TROUBLESHOOTING

INSTALLATION AND OWNER’S MANUAL

OUTDOOR UNIT MODELS

OUTDOOR UNIT

mrcool.com | Page 1

OUTDOOR UNIT

mrcool.com | Page 2

Fig. 1

Table - 1

21-3/4 [554] 21-3/4 [554]

1. Dimensions

OUTDOOR UNIT

mrcool.com | Page 3

Fig. 2

2. Service Space

OUTDOOR UNIT

mrcool.com | Page 4

Applicable for 18k, 24k, 30k, 36k cooling only type

Applicable for 18k, 24k, 30k, 36k cooling & heating type

Fig. 3-1

Fig. 3-2

3. Piping Diagrams

OUTDOOR UNIT

mrcool.com | Page 5

Applicable for 42k, 48k, 60k cooling only type

Applicable for 42k, 48k, 60k cooling & heating type

Fig. 3-3

Fig. 3-4

OUTDOOR UNIT

mrcool.com | Page 6

Applicable for 18k, 24k, 30k, 36k, 42k, 48k, 60k cooling only type

Applicable for 18k, 24k, 30k, 36k, 42k, 48k, 60k cooling & heating type

1. Grounded and all wiring to conform to I.E.C.

2. Replacement wire must be the same gauge and insulation type as original wire.

3. The units should install the stated-cross-section ground wire and keep it

grounding properly and reliably.

4. According to the actual connection of low-voltage switch or short wiring.

1. Grounded and all wiring to conform to I.E.C.

2. Replacement wire must be the same gauge and insulation type as original wire.

3. The units should install the stated-cross-section ground wire and keep it

grounding properly and reliably.

4. For indoor transformer, the current of 24V load voltage is not less than 1.5A.

Fig. 4-1

Fig. 4-2

4. Wiring Diagrams

OUTDOOR UNIT

mrcool.com | Page 7

Table - 2

5. Electrical Characteristics

OUTDOOR UNIT

mrcool.com | Page 8

Fig. 6

Table - 3

Range of

Operation

Range of

Operation

When the ambient temperature is more than 109°, the restart time may take 15-20 minutes. It is

suggested to install a booster in the outdoor unit (18K, 24K, 30K, and 36K units only) to shorten

the restart time. In the case of high and low pressure imbalance, a booster can increase the

starting torque of the compressor allowing it to start normally.

6. Operation Limits

(17°C~30°C) (17°C~30°C)

(18°C~43°C) (-7°C~24°C)

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