Mitsubishi Electric PWFY-P36NMU-E-BU, Installation Manual

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2. About the product
Warning:
‡ Do not use refrigerant other than the type indicated in the manuals
provided with the unit and on the nameplate.
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during use, during repair, or at the time of disposal of the unit.
- It may also be in violation of applicable laws.
- MITSUBISHI ELECTRIC CORPORATION cannot be held responsible for mal-
functions or accidents resulting from the use of the wrong type of refrigerant.
‡
This unit uses R410A-type refrigerant
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ing conventional refrigerant because the design pressure in systems using
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other types of refrigerant cannot be used with the systems using R410A. Re-
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conventional refrigerating machine oil and refrigerant. This chlorine will dete-
riorate the refrigerant machine oil in the new equipment. The existing piping
must not be used as the design pressure in systems using R410A is higher
than that in the systems using other types of refrigerant and the existing
pipes may burst.
6. Installation of unit and service space
6.1. Installation
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[Fig. 6.1.1] (P.2)
Ⓐ 4-ø14 [9/16] (Anchoring hole) Ⓑ Top view
Bases
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base is unstable, reinforce with a concrete base.
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stallation.
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vibration stand on the base of the unit is recommended.
Warning:
‡ Be sure to install unit in a place strong enough to withstand its weight.
Any lack of strength may cause unit to fall down, resulting in a personal
injury.
‡ + ave installation work in order to protect against earthquake.
Any installation de ¿ ciency may cause unit to fall down, resulting in a
personal injury.
6.2. Service space
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(All servicing can be performed from the front of the unit)
[Fig. 6.2.1] (P.2)
Model a b c
PWFY-P36NMU-E-BU 400 [15-3/4] 300 [11-13/16] 600 [23-5/8]
PWFY-P36NMU-E2-AU 400 [15-3/4] 300 [11-13/16] 600 [23-5/8]
PWFY-P72NMU-E2-AU 400 [15-3/4] 300 [11-13/16] 600 [23-5/8]
Ⓐ Piping space (right side) Ⓑ Top view
Ⓒ Service space (front side)
5. Lifting method
Caution:
Be very careful when carrying the product.
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4. Con ¿ rmation of parts attached
① Strainer ② Heat insulation material ③ Expansion joint × 2 (PWFY-P72NMU-E2-AU) ④ Washer × 2 ⑤ Flow switch (PWFY-P36/72NMU-E2-AU)
6
Buffer material
7. Water pipe installation
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serve the following precautions during installation.
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oughly let them dry.
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it from freezing.
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circulating at all times. If that is not possible, purge the water out of the pipes
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completely.
3. Speci ¿ cations
Model PWFY-P36NMU-E-BU PWFY-P36NMU-E2-AU PWFY-P72NMU-E2-AU
Sound level 44dB<A> 29dB<A> 29dB<A>
Refrigerant
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- -
Net weight
NJ>OEV@ NJ>OEV@ NJ>OEV@
Design pressure
R410A MPa [psi] 4.15 MPa [601 psi] 4.15 MPa [601 psi] 4.15 MPa [601 psi]
R134a MPa [psi] 3.60 MPa [522 psi] - -
Water MPa [psi] 1.0 MPa [145 psi] 1.0 MPa [145 psi] 1.0 MPa [145 psi]
Connectable
outdoor unit
Total capacity 50~100 % of outdoor unit capacity
Model R2 series, WR2 series Y series, WY series
Temp. range of
heating Outdoor temp.
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Inlet Water temp.
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Temp. range of
cooling Outdoor temp. -
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Inlet Water temp. -
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