Specifications; Confirmation Of Parts Attached; Lifting Method; Installation Of Unit And Service Space - Mitsubishi Electric CITY MULTI Série Manuel D'installation

3. Specifications

Model
Sound level
Refrigerant
Net weight
R410A MPa [psi]
Design pressure R134a MPa [psi]
Water MPa [psi]
Connectable Total capacity
Outdoor unit Model/Quantity
Temp. range of Outdoor temp.
Heating Inlet Water temp.
Temp. range of Outdoor temp.
Cooling Inlet Water temp.

4. Confirmation of parts attached

1 Strainer 2 Heat insulation material

5. Lifting method

Caution:
Be very careful when carrying the product.
- Do not have only one person to carry product if it is more than 20 kg [45 lbs].
- PP bands are used to pack some products. Do not use them as a mean for transportation because they are dangerous.
- Tear plastic packaging bag and scrap it so that children cannot play with it. Otherwise plastic packaging bag may suffocate children to death.

6. Installation of unit and service space

6.1. Installation

• Using the anchoring holes shown below, firmly bolt the unit to the base.
[Fig. 6.1.1] (P.2)
A 4-ø14 [9/16] (Anchoring hole)
Bases
• Be sure to install unit in a place strong enough to withstand its weight. If the
base is unstable, reinforce with a concrete base.
• The unit must be anchored on a level surface. Use a level to check after
installation.
• If the unit is installed near a room where noise is a problem, using an anti-
vibration stand on the base of the unit is recommended.

7. Water pipe installation

• Light pipes are similar to other air-conditioning pipes, however, please observe
the following precautions during installation.
• Before a long period of non use, purge the water out of the pipes and thor-
oughly let them dry.
• Use a closed water circuit.
• When using the unit for cooling, add brine to the circulating water to prevent it
from freezing.
• When installed in a low-ambient temperature environment, keep the water cir-
culating at all times. If that is not possible, purge the water out of the pipes
completely.
PWFY-P36NMU-E-BU
44dB<A>
R134a 1.1 kg [3 lbs]
60 kg [133 lbs]
4.15 MPa [601 psi]
3.60 MPa [522 psi]
1.0 MPa [145 psi]
PU(Q)RY-P-T(S)HMU-A
PU(Q)RY-P-Y(S)HMU-A
-4~90 °F (-20~32 °CWB)
50~160 °F (10~71 °C)
-
-
3 Connecter sets 2
B Top view
PWFY-P36NMU-E-AU
35 kg [78 lbs]
4.15 MPa [601 psi]
1.0 MPa [145 psi]
50~100 % of outdoor unit capacity
-4~60 °F (-20~15.5 °CWB) : PUHY - series
23~110 °F (-5~43 °CDB) : PURY, PUHY - series
4 Expansion joint 2 (PWFY-P36NMU-E-AU)
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.
• Have installation work in order to protect against earthquake.
Any installation deficiency may cause unit to fall down, resulting in a
personal injury.

6.2. Service space

• Please allow for the following service spaces after installation.
(All servicing can be performed from the front of the unit)
[Fig. 6.2.1] (P.2)
Model
PWFY-P36NMU-E-BU
PWFY-P36NMU-E-AU
PWFY-P72NMU-E-AU
A Piping space (right side)
C Service space (front side)
• Do not use the water used for this unit for drinking or food manufacturing.
• Do not use steel pipes as water pipes.
• When the ambient temperature is 0 °C [32 °F] or lower during stop operation,
keep the water circulating at all times, or purge the water out of the pipes
completely.
Model
PWFY-P36NMU-E-BU
PWFY-P36NMU-E-AU
PWFY-P72NMU-E-AU
*1 When the attached
expansion joints are
installed.
PWFY-P72NMU-E-AU
29dB<A> 29dB<A>
-
38 kg [84 lbs]
4.15 MPa [601 psi]
-
1.0 MPa [145 psi]
PU(Q)H(R)Y-P-T(S)HMU-A
PU(Q)H(R)Y-P-Y(S)HMU-A
-4~90 °F (-20~32 °CWB) : PURY - series
50~105 °F (10~41 °C)
50~95 °F (10~35 °C)
a b
400 [15-3/4] 300 [11-13/16]
400 [15-3/4] 300 [11-13/16]
400 [15-3/4] 300 [11-13/16]
B Top view
Water outlet
Water inlet
PT 3/4 Screw
PT 3/4 Screw
PT 3/4 Screw
PT 3/4 Screw
PT 1 Screw*1
PT 1 Screw*1
-
-
c
600 [23-5/8]
600 [23-5/8]
600 [23-5/8]
7