Toshiba MMD-AP 1HF2UL, MMD-AP0481HF2UL, MMD-AP0721HF2UL, MMD-AP0961HF2UL Series Manual

MMD-AP___1HF2ULE15-3S2

MMD-AP0481HF2UL
MMD-AP0721HF2UL
MMD-AP0961HF2UL

Outside Air Unit Type

Contents

1. System summary

2. Specifications

3. Dimensions

4. Center of gravity

5. Piping diagram

6. System combination

7. Wiring diagram

8. Electrical characteristics

9. Fan characteristics

10. Sound data

1

1. System summary

• Connectable outdoor unit

Outdoor unit of SMMS-e series.

• Corresponding system

Corresponds to a system in which there are the outside air units and the indoor air
conditioners.

• Definition

The outside air unit means an air controller for taken-in outside air.
Intake of the outside air often influences on the system so that the normal control of the air conditioner
becomes difficult or gives a large load upon air controller and cooling performance.
Therefore it is frequently adopted to handle the outside air to a certain condition before the outside air
will enter in the main air conditioner.
This handling device is called an outside air unit.

NOTE:

The outside air unit is an air conditioner provided to handle the outside air load and is not to control
the room temperature. For correspondence to the load of the indoor air controller, set an air
conditioner separately.

Outside Air Unit Type

MMD-AP___1HF2ULE15-3S2

2

MMD-AP___1HF2ULE15-3S2

2. Specifications

Model name MMD- AP0481HF2UL AP0721HF2UL AP0961HF2UL

Cooling capacity (Note1)

Heating capacity (Note1)

Power supply 230 V (208/230 V) 1phase

Electrical
characteristics

Outer
dimension

Main unit weight lbs 212 349

Heat exchanger Finned tube

Soundproof / Heat-insulating material Non-flammable insulation

Fan Centrifugal fan

Standard air flow cfm 636 989 1237

Motor W AC 160 AC 160 x 2

External static pressure
(factory default)

External static
pressure
(factory default)

Air flow limit

Air filter Field supply

Controller Wired remote controller

Connecting
pipe

Sound pressure level

Operation
range for SMMS-e

Running current A 1.58/1.56 3.00/2.88 3.32/3.17

Power consumption kW 0.31/0.34 0.56/0.58 0.64/0.66

Starting current A 3.90/3.20 7.70/6.30 8.50/6.90

Height In 19.5"

Width In 35.4" 55"

Depth In 49.8"

208 V / 230 V In WG 0.55/0.86 0.74/1.00 0.41/0.85

208 V (H / M / L) In WG 0.75/0.55/0.16 0.84/0.74/0.24

230 V (H / M / L) In WG 1.06/0.86/0.50 1.08/1.00/0.65

Lower limit cfm 445 693 866

Upper limit cfm 700 1088 1360

Gas pipe In 5/8" 7/8"

Liquid pipe In 3/8" 1/2"

Drain pipe In VP25 (Polyvinyl chloride tube: External Dia.1-1/4 internal Dia.1)

208 V (H / M / L) dB(A) 44/43/36 47/46/40

230 V (H / M / L) dB(A) 46/45/42 48/47/46

Cooling (Note 2)

Heating (Note 3)

kBtu/h 48.0 72.0 96.0

kBtu/h 30.0 47.0 59.0

0.67/0.41

1.01/0.85

°F

°F

41 - 115

23 - 109

47/45

50/49

(H/L)

(H/L)

(H/L)

(H/L)

* The setting temperature is 60 - 80 °F
* Height difference between outside air units must be within 1.97" (0.5 m).

Note 1: Rated conditions Cooling: Outdoor air temperature 91 °F DB/82 °F WB setting temperature 64 °F

Heating: Outdoor air temperature 32 °FDB/26 °F WB setting temperature 77 °F

Note 2: * When supply air temperature is “setting temperature + 5.4 °F” or less, Outside air unit operates as FAN mode.

Note 3: * When supply air temperature is “setting temperature - 5.4 °F” or over, Outside air unit operates as FAN mode.

3

3. Dimensions

Installation Notes

Unit:in(mm)

1. Provide access area to the right of the unit as shown.

2. Condensate piping should slope downwards in the direction of

condensate flow, with a minimum gradient of 1in per 100 inches.

Condensate pipe should be insulated to avoid condensation.

3. Check condensate system for proper drainage before stating the unit.

4. Avoid installation of unit in Hazardous locations.

5. Filter and filter box are field provide and field installed items which

would prevent deposition of duct and dirt in the unit.

6. Install flexible duct for easy disassembly of the unit during major

service or breakdown.

7. Insulating the suction duct is recommended to avoid any

condensation on the exterior from untreated outside air.

8. Outside air louver with screen is recommended at the outside air

operating on the exterior wall.

Access Area

23.6"

(600)

23.6"

(600)

Space required for installation and servicing

Example

Access Area

23.6" (600)

Service

space

Over

7.9"

(200)

Service

space

7.9"

(200)

Over 39.4" (1000)

Outside Air

Unit

Outside Air

Unit

Flexible duct

Filter Box

Filter

Ceiling

Air intake duct

Access Area

Outside air

Over

3.9"

(100)

Over

2.0"

(50)

Air flow

23.0" (583)Outside

15.1" (383)

Outside

Suction

Discharge temp sensor

Discharge

28.7" (728)Outside

13.7" (347)

Outside

0.7" (18)

2.3" (59)

2.5" (65)

2.6" (65)

0.4" (9)

2.6" × 5 = 12.8"

(65 × 5 = 325)

Screw hole for

duct mounting

(6-ø0.2" (5))

1.9"

(49)

8.6"

(218)

5.9"

(150)

27.5" (699)

33.3" (845)

Drain pipe connection port (V25)

Taper screw for R1,1" (25.4) pipes

0.4" (10)

0.8" (20)

49.8" (1266)

0.7" (19)

0.4" (9)

Refrigerant pipe connection port

(Liquid side ø3/8" (9.5) Flared)

Refrigerant pipe connection port

(Gas side ø5/8" (15.9) Flared)

2.6" (65)

1.1"

(28)

2.6" × 5 = 12.8"

(65 × 5 = 325)

2.6" (66)

19.5" (496)

Electrical box

50.7" (1288) Mounting Location

52.3" (1328)

Hole for hanging bolt

(4-ø1/2" (12) × 1.6" (40))

2.6" (65)

2.5" (62)

2.6" × 10 = 25.6"

(65 × 10 = 650)

2.6" (65)

2.2" (55)

2.6" × 8 = 20.5"

(65 × 8 = 520)

32.2" (818) Mounting Location

3.4" (87) 35.4" (898)

0.4" (9)

0.7" (19)

0.4" (9)

0.7" (19)

Screw hole for duct mounting(9-ø0.2" (5))

Screw hole for duct mounting(11-ø0.2" (5))

7.6" (193)

11.8" (299)

1.2" (30)

1.3" (33)

Z

Z view

ø1.2" (30) Hole for control wire

and remote control wiring

ø7/8" (22.2) Hole for power supply cable

Screw hole for duct mounting

(6-ø0.2" (5))

MMD-AP0481HF2UL

MMD-AP___1HF2ULE15-3S2

4

0.7"(18)

2.3"(59)

Discharge temp sensor

Discharge

2.1"(52)

42.6"(1083) Outside

13.7"(347)

Outside

Z

2.6"(65)

2.6"×5=12.8"

(65×5=325)

0.4"(9)

2.6"(65)

1.1"

(28)

2.6"×5=12.8"

(65×5=325)

2.6"(66)

19.5"(496)

27.5"(699)

33.3"(845)

Drain pipe connection port(V25)

Taper screw for R1,1"(25.4) pipes

Screw hole for

duct mounting

(6-Ø0.2"(5))

Screw hole for duct mounting

(6-Ø0.2"(5))

1.9"

(49)

8.6"

(218)

5.9"

(150)

0.4"(10)

0.8"(20) 49.8"(1266) 0.7"(19)

0.4"(9)

Hole for hanging bolt

Refrigerant pipe connection port

(Liquid side Ø1/2"(12.7) Flared)

(4-Ø1/2"(12)×3.6"(92))

Suction

42.6"(1083) Outside

15.1"(383)

Outside

50.7"(1288) Mounting Location

52.3"(1328)

2.6"(65)

1.8"(45) 2.6"×16=40.9"(65×16=1040)

2.6"(65)

1.8"(45)

2.6"×16=40.9"(65×16=1040)

32.2"(818)

Mounting Location

55"(1398)

3.7"(93)

0.4"(9)

0.7"(19)

0.4"(9)

0.7"(19)

Screw hole for duct mounting(17-Ø0.2"(5))

Screw hole for duct mounting(17-Ø0.2"(5))

Refrigerant pipe connection port

(Gas side Ø7/8"(22.2) Brazed)

Access Area

23.6"

(600)

23.6"

(600)

Electrical box

Air flow

Space required for installation and servicing

Example

Access Area

23.6"(600)

Service

space

Over

7.9"

(200)

Service

space

7.9"

(200)

Over 39.4"(1000)

Outside

Air Unit

Outside

Air Unit

Flexible duct

Filter Box

Filter

Flexible duct

Ceiling

Air intake duct

Access Area

Outside air

Over

3.9"

(100)

Over

2.0"

(50)

4.0"(100)

6.6"(166)

1.3"

(33)

Ø1"(26) Hole for control wire

Ø7/8"(22.2) Hole for power supply cable

and remote control wiring

Z view

Installation Notice

1. Provide access area to the right of the unit as shown.

2. Condensate piping should slope downwards in the direction of

condensate flow,with a minimum gradient of 1in per 100 inches.

Condensate pipe should be insulated to avoid condensation.

3. Check condensate system for proper drainage before starting the unit.

4. Avoid installation of unit in Hazardous locations.

5. Filter and filter box are field provided and field installed items which

would prevent deposition of duct and dirt in the unit.

6. Install flexible duct for easy disassembly of the unit during major

service or breakdown.

7. Insulating the suction duct is recommended to avoid any

condensation on the exterior from untreated outside air.

8. Outside air louver with screen is recommended at the outside air

opening on the exterior wall.

Unit: in(mm)

MMD-AP___1HF2ULE15-3S2

5

4. Center of gravity

Z

Y

X

Electrical box

Model name MMD-

AP0481HF2UL

AP0721HF2UL

AP0961HF2UL

X (In) Weight (lb)

26.4 18.9 8.7 212

26.4 30.3 8.7 349

Z (In)Y (In)

MMD-AP___1HF2ULE15-3S2

6

5. Piping diagram

M

Liquid side Gas side

Strainer

Pulse Motor
Val ve (PMV)

Sensor
(TC2)

Strainer

Capillary tube

Air heat exchanger

at indoor side

Sensor
(TCJ)

Fan

Sensor

(TA)

Fan motor

Sensor

(TC1)

Sensor

(TF)

MMD-AP___1HF2ULE15-3S2

Functional part name Functional outline

Pulse Motor Valve PMV (Connector CN082 (6P): Blue)

1) Controls super heat in cooling operation

2) Controls sub cool in heating operation

3) Recovers refrigerant oil in cooling operation

4) Recovers refrigerant oil in heating operation

Temp. sensor 1. TA (Connector CN104 (2P): White)

1) Detects indoor suction temperature

2. TC1 (Connector CN100 (3P): Brown)

1) Controls PMV super heat in cooling operation

3. TC2 (Connector CN101 (2P): Blue)

1) Controls PMV sub cool in heating operation

4. TCJ (Connector CN102 (2P): Yellow)

1) Controls PMV super heat in cooling operation

5. TF (Connector CN103 (2P): Green)

1) Detects indoor discharge temperature

7

MMD-AP___1HF2ULE15-3S2

6. System combination 6-1. Case of MMY model

The Outside Air Unit is connectable to SMMS (Super Modular Multi system).

However this is not connectable to SHRM (Super Heat Recovery Multi system).

Keep the height difference between the Outside Air Units to 1.97" (0.5 m) or less.

Case of Outside Air connection with other indoor units

Connection which stretches over two floors is unavailable units

Correct

Height difference: 1.97" (0.5 m) or less

Case of All Outside Air connection to SMMS-e

• System that connected to Outside Air Unit only can be used with only single Outdoor unit on one line of the multi system.
The combination of indoor units is only available specified in following Table 2.

Correct

Height difference: 19.7" (0.5 m) or less

Incorrect

The combination of Indoor units

1. The capacity code of Indoor unit is decided for each capacity type.

emanledomtinuroodnI

pytyticapactinuroodnI

apactinuroodnI

ocytic

2. Combination of Indoor units is decided for Outdoor unit capacity type.

It allows only the combinations of Indoor units below.

Outdoor unit capacity type Outdoor unit capacity code

epyt270

7

441epyt441

861epyt861

Combination of Indoor unit capacity type

1

2702
69069epyt690

-021epyt021

-

-

-

Please refer to “Outside Air Unit’s Installation Manual” except the above contents.

690270840e

692784ed

Number of Indoor units

270

LU2FH1690PALU2FH1270PALU2FH1840PA-DMM

32

--

840+840

270+

70+690

-

-840+270
840+840+840

-840+690

02

840+840+27

8

MMD-AP___1HF2ULE15-3S2

Allowable length/height difference of refrigerant pipinJ&DVHRI$OO2XWVLGH$LU

CAUTION

 Length and height of refrigerant piping keep the limitation blow.

If installed in out of the limitation, there is a possibility that heat-exchanger in Outdoor unit will burst and leak a refrigerant gas, for freezing heat-exchanger by shortage
of defrosting capacity.

Allowable length and height difference of refrigerant piping

(*1): Farthest Indoor unit from the first branching section is the Indoor unit (c).

Please refer to “Outdoor Unit’s Installation Manual” except the above contents.

System restrictions Cautions for installation

 Y-shaped branching joint must be installed

horizontally.

Max. No. of combined Outdoor units 1 unit
Max. capacity of combined Outdoor units 14 ton
Max. No. of combined Indoor units 3 units
Max. capacity of combined Indoor units Refer to “ The combination of Indoor units”

Allowable value

Pipes

mtf

Pipe length Total extension of pipe (Liquid pipe) Actual length c + b + a + 2L + 1L003489

Farthest piping length

L (*1)

Equivalent length 051294

L1 + c

Actual length 031724

Main piping length

Equivalent length

Max. 394

0LQ

Max. 120
(Min. )

L1

Actual length

Max. 328

(Min. 164)

Max. 100
(Min. 50)

Farthest equivalent piping length from the first
branching section

Li

(*1)

Equivalent length c0389

Farthest equivalent piping length between
Outdoor units

LO

Equivalent length 

Maximum equivalent piping length of Outdoor
unit connecting pipe

Equivalent length 

Maximum actual length of pipes connected to
Indoor units

Actual length c ,b ,a0389

Maximum equivalent length between
branching sections

Equivalent length 2L0389

Height difference

Height between Outdoor and Indoor units

H1

Upper Outdoor units 04131 

Lower Outdoor units 301 

Height between Indoor units

H2

5.02 

Height between Outdoor units

H3



Indoor unit

Outdoor unit

Unit (A)

Unit (b)

Branching header

Branching pipe

L2

Indoor unit connecting pipe

Indoor unit

Main

piping

L1

First branching

section

The longest piping length: L  492 ft (150 m)

The longest piping length from the first branch:

Li  98 ft (30 m)

Height difference between

Outdoor and Indoor units:

H1  131 ft (40 m)

Indoor unit connecting pipe

Height difference

between Indoor units:

H2  2 ft (0.5 m)

Unit (a)

b

H2

c

a

H1

Unit (c)

Indoor unit

Max. 100
(Min. 50)

Max. 120
(Min. 50)

Max. 394

(Min. 164)

Max. 328

(Min. 164)

9