
Modular Hi-Rise Replacement Series – MIY
INSTALLATION, OPERATION, & MAINTENANCE MANUAL
6
SECTION ONE — Receipt, Unpacking, & Inspection, Cont’d.
Potential Unit Configurations
NOTE: Risers can not be installed on the Return Air side of the cabinet. (Front)
Figure 1. Air Arrangements
NOTES: 1. Risers pictued are shown for reference purposes only and adhere to the IEC
standard convention.
2. MRY/MIY equipment is designed to use existing risers, so risers are typically not
sold with these models.
3. Riser supply-return configurations and temperature should be labeled prior to
demolition, and must be verified prior to installation, as they may differ from the
IEC standard convention.
Single-side Supply
HS
HR
CR
D
CS
A1
HS
HR
CR
D
CS
A1
A1
Sup
Ret
Ret
Sup
Ret
Sup
90°
90°
HS
D
CR
CS
HR
HS
HR
CR
D
CS
H1
H1
HS
HR
CR
D
CS
H1
Sup
Ret
Ret
Sup
90°
90°
Sup
Ret
HS
D
CR
CS
HR
S1
Sup
Ret
S1
S1
HS
HR
CR
D
CS
Sup
Ret
HS
HR
CR
D
CS
Ret
Sup
90°
90°
HS
D
CR
CS
HR
Single-side and Top Supply
Top Supply Only
HS
HR
CR
D
CS
C2
Sup
Ret
Supply
Ret
Sup
HS
HR
CR
D
CS
C2
Ret
Sup
Sup
90°
90°
C2
Sup
HS
D
CR
CS
HR
HS
HR
CR
D
CS
HS
HR
CR
D
CS
M2
Sup
Ret
Ret
Sup
Sup
Supply
M2
M2
Supply
90°
90°
Sup
Ret
HS
D
CR
CS
HR
Sup
Ret
HS
HR
CR
D
CS
Sup
W2
Sup
Ret
HS
HR
CR
D
CS
W2
Supply
W2
Supply
90°
90°
Ret
Sup
HS
D
CR
CS
HR
HS
HR
CR
D
CS
D1
HS
HR
CR
D
CS
D1
D1
Ret
Ret
Ret
Supply
Sup
Sup
90°
90°
HS
D
CR
CS
HR
K1
K1
K1
HS
HR
CR
D
CS
Sup
Ret
HS
HR
CR
D
CS
Supply
Supply
Ret
Ret
90°
90°
HS
D
CR
CS
HR
HS
HR
CR
D
CS
T1
T1
HS
HR
CR
D
CS
Ret
Sup
Ret
T1
Supply
Supply
Ret
90°
90°
HS
D
CR
CS
HR
Rear
Riser Location
MOD
CABINET
Right
Front
Left
HS
HR
CR
D
CS
HR = Hot Water Return
HS = Hot Water Supply
D = Drain
CR = Cold Water Return
CS = Cold Water Supply