20
Table 7 — Blower Data — 50HQP120 (cont)
LEGEND NOTES:
1. A = Standard Rpm/Standard Motor, B = Low Rpm/Standard Motor, C =
High Rpm/Standard Motor.
2. Unit factory shipped with standard static sheave and drive at 2.5 turns
open. Other speed require field selection.
3. For applications requiring higher static pressures, contact your local rep-
resentative. Performance data does not include drive losses and is based
on sea level conditions.
4. All airflow is rated at lowest voltage if unit is dual voltage rated, i.e., 380V
for 380/420V units.
5. Airflow in l/s with wet coil and clean filter.

FIELD SELECTABLE INPUTS

Jumpers and DIP (dual in-line package) switches on the
control board are used to customize unit operation and can be
configured in the field.

Complete C Control Jumper Settings (See

Fig. 12)

WATER COIL FREEZE PROTECTION (FP1) LIMIT
SETTING Select jumper 3, (JW3-FP1 Low Temp) to
choose FP1 limit of –12.2 C or –1.1 C. To select –1.1 C as the
limit, DO NOT clip the jumper. To select –12.2 C as the limit,
clip the jumper.
AIR COIL FREEZE PROTECTION (FP2) LIMIT SET-
TING Select jumper 2 (JW2-FP2 Low Temp) to choose
FP2 limit of –12.2 C or –1.1 C. To select –1.1 C as the limit,
DO NOT clip the jumper. To select –12.2 C as the limit, clip
the jumper.
ALARM RELAY SETTING Select jumper 1 (JW1-AL2
Dry) for connecting alarm relay terminal (AL2) to 24 vac (R) or
to remain as a dry contact (no connection). To connect AL2 to
R, do not clip the jumper. To set as dry contact, clip the jumper.
Complete C Control DIP Switches — The Com-
plete C Control has 1 DIP switch block with five switches. See
Fig. 12.
PERFORMANCE MONITOR (PM) — DIP switch 1 will
enable or disable this feature. To enable the PM, set the switch
to ON. To disable the PM, set the switch to OFF.
STAGE 2 DIP switch 2 will enable or disable compressor
delay. Set DIP switch to OFF for stage 2 in which the compres-
sor will have a 3-second delay before energizing.
NOTE: The alarm relay will not cycle during Test mode if
switch is set to OFF, stage 2.
DIP SWITCH 3 — not used.
DIP SWITCH 4 — not used.
DIP SWITCH 5 — DIP switch 5 is used to initiate 1 or 3 tries
for the FP1 fault. If water freeze protection for the water coil
then DIP switch 5 can be set to lockout on the FP1 fault after
one try.

Deluxe D Control Jumper Settings (See

Fig. 13)

WATER COIL FREEZE PROTECTION (FP1) LIMIT
SETTING Select jumper 3, (JW3-FP1 Low Temp) to
choose FP1 limit of –12.2 C or –1.1 C. To select –1.1 C as the
limit, DO NOT clip the jumper. To select –12.2 C as the limit,
clip the jumper.
AIRFLOW
(l/s)
EXTERNAL STATIC PRESSURE (Pa)
0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375
1605
BkW 0.79 0.85 0.89 0.94 0.99 1.04 1.08 1.12 1.17 1.23 1.29 1.35
Sheave/Mtr AAAAAAACCCCC
RPM 755 790 820 855 890 920 945 975 1005 1035 1060 1090
Turns Open 54.53.53 21.513.53 21.51 ————
1652
BkW 0.87 0.91 0.96 1.02 1.06 1.11 1.15 1.20 1.24 1.29 1.34
Sheave/Mtr AAAAAACCCCC
RPM 780 810 845 880 910 940 970 1000 1025 1050 1080
Turns Open 4.54 32.52 13.532.52 1 —————
1699
BkW 0.94 0.99 1.04 1.09 1.15 1.20 1.25 1.30 1.35 1.40 1.45
Sheave/Mtr AAAAACCCCCC
RPM 805 835 870 900 930 960 990 1015 1045 1070 1100
Turns Open 43.52.521.53.532.521.51 —————
1746
BkW 1.011.051.101.161.211.261.321.371.431.49——————
Sheave/Mtr AAAAACCCCC——————
RPM 825 855 885 915 945 975 1005 1030 1060 1085 ——————
Turns Open 3.532.51.513.53 21.51 ——————
1794
BkW 1.071.111.171.221.271.331.381.451.511.57——————
Sheave/Mtr AAAACCCCCC——————
RPM 840 870 900 930 960 990 1015 1045 1070 1095 ——————
Turns Open 3.52.521.53.532.521.51 ——————
1841
BkW 1.171.211.271.321.381.431.491.551.62———————
Sheave/Mtr A A A A C C C C C———————
RPM 860 885 915 945 975 1005 1030 1055 1085 ———————
Turns Open 32.51.513.53 21.51 ———————
1888
BkW 1.231.291.351.411.481.531.601.661.72———————
Sheave/Mtr A A A C C C C C C ———————
RPM 875 900 930 960 990 1015 1045 1070 1095 ———————
Turns Open 2.521.53.532.521.51 ———————
——Operation Not Recommended
BkW — Brake Kilowatts
ESP External Static Pressure
RPM — Revolutions Per Minute
A—Units with Standard Static/Standard Motor Option
B—Units with Low Static/Standard Motor Option
C—Units with High Static/Standard Motor Option
IMPORTANT: Jumpers and DIP switches should only be
clipped when power to control board has been turned off.